Happy Thanksgiving! All Library locations will be closed on Thurs, November 26 for Thanksgiving. We will re-open for regular hours on Fri, November 27. Looking for something to read, watch, or listen to? Explore our download and streaming resources and share with friends.

Research Databases

Ancestry Library Edition »
In library only
Ancestry® Library Edition is a collection of over 7,000 databases that contain billions of historical records including censuses, vital records, immigration records, family histories, military records, court and legal documents, directories, photos, and maps. Countries for which data is available include the United States, Canada, United Kingdom, Germany, China, and others. Available for In-Library Use only.
Birds of North America Online »
Look here for comprehensive life histories for each of the 716+ species of birds breeding in the USA (including Hawaii) and Canada. Each species account also includes a comprehensive bibliography of research conducted on the species. The accompanying multimedia includes photos of various plumages, examples of sounds, and videos of interesting behaviors.
Business Insights Global »
Business Insights Global is a unique source for international business intelligence offering the most comprehensive and convenient way to find case studies, in-depth statistical data coupled with deep research, and the ability to compare global economies, countries and industries.
Business Source Complete »
Business Source Complete indexes and abstracts more than 4,800 scholarly, trade, popular, and special interest serials in the fields of business and industry. More than half of the publications are peer-reviewed, and approximately 3,700 provide full text. Additional full-text, non-journal content includes financial data, books, monographs, major reference works, conference proceedings, case studies, investment research reports, and more.
Chiltonlibrary.com »
This auto repair database provides step-by-step instructions, pictures, and diagrams to help with vehicle maintenance and repair. Try the Vehicle Selector to select the year, make and model of your car. Then find further information like repair, maintenance, and bulletins/recalls.
Classical Music in Video »
Watch Classical Music in Video, the definitive online video collection for the study of classical music, including almost 1,000 hours of classical music performances and masterclasses -- approximately 1,500 performances of all forms of classical music -- from Medieval to the 21st century.
Credo Reference »
Search hundreds of reference books, on subjects from Art to Technology.  Includes full text articles from dictionaries and encyclopedias, images, animations, and art reproductions.  Available from home - Log in with your 14 digit library card number.
DemographicsNow »
Access a demographic report on any geography, the maps tab to view a simple map and the 2010 census files as they are released by the U.S. Census Bureau. Look here to for easy access to other data files in the future.
Digital Commons »
Digital Commons is a collection of the Portland Public Library featuring digitized materials that capture and preserve the history and community life of Portland, Maine. These materials are drawn from the library’s own collections and from partnering organizations in the region.
Directory of Venture Capital & Private Equity Firms »
Brings together both venture capital and private equity organizations into one comprehensive directory - updated, offering valuable, current, and detailed information entrepreneurs and businesses worldwide. Includes over 300 new firms and over 1,000 new partners. These numbers bring the total number of firms to over 3,000 firms, over 1,000 branches, and over 12,000 partners. In addition, more than 15,000 portfolio portfolio companies listed.
Global Issues in Context »
Global Issues in Context is a colorful wealth of resources explaining the background and viewpoints necessary for understanding global issues, conflicts, and events.
Health and Wellness Resource Center »
A rich online resource for all levels of inquiry, this comprehensive consumer health collection provides authoritative information on the full range of health-related issues, from current disease and disorder information to in-depth coverage of alternative and complementary medical practices. Articles, streaming videos featuring medical experts, reference books, news feeds, links to key health websites, and more.
Health Source: Consumer Edition »
Health Source provides information on the medical sciences, psychology, food sciences and nutrition, childcare, sports medicine, health care law and general health.
Heritage Quest »
HeritageQuest offers genealogy information, including census data, local history articles, revolutionary war records and more.
Learning Express – Adult Learning Center »
This center offers busy adults the resources to improve their basic skills in reading, writing, and math, prepare for the GED® test, or become a U.S. citizen.
Learning Express – Career Center »
Are you preparing for a professional exam? Are you curious about a particular occupation or looking to improve your workplace skills? Choose the Career Center and begin your path to a bright future.
Learning Express – College Center »
This center provides valuable resources that help college students strengthen their academic skills, prepare for placement tests, and get ready for graduate school entrance exams.
Learning Express – College Prep Center »
College Prep Center Getting into college is an important step to building a strong future. First, you must do well on your college admission tests and write a personal essay that highlights your special talents. Use this center to get the resources you need to achieve your college preparation goals.
Learning Express – Computer Skills »
Video courses are the fastest and easiest way to learn how to use a computer. Use the materials in this center to learn the basics of computers, from searching the Internet to using popular programs for word processing, creating spreadsheets and databases, implementing design, and more.
Learning Express – High School Equivalency Center »
Earning a high school equivalency credential can open the door to better income, a more fulfilling job, and a college education. If you are preparing for the GED® test, HiSET® or TASC™ exams, our practice tests, interactive tutorials, and eBooks will help you reach your goal.
Learning Express – Job & Career Accelerator™ »
Whether you’re looking to find a new job in your current field or pursue a career in an exciting new industry, Job & Career Accelerator™ has the powerful tools and expert guidance to help you through every step of the process.
Learning Express – Recursos en español »
Este centro ofrece a los adultos que están muy ocupados los recursos para mejorar sus habilidades básicas, ganar sus credenciales de GED® o ser ciudadano estadounidense.
Learning Express – School Center »
The resources here can help students in elementary, middle, and high school prepare for important tests, get extra help with assignments, and boost their skills in important subjects.
Learning Express Library »
For practice tests and other job seeking skills, visit the LearningExpress Library, a collection of tools providing online job, career, and computer training resources as well as skill-building courses, exercises, and practice exams for ASVAB, Civil Service, SAT,  U.S. Citizenship and more. Set up a user name and password and return to the test at any time. The site is divided into sections by type of skill or practice test you want to pursue.
LegalForms »
LegalForms provides a wide selection of state-specific (and multi-state) legal forms across the most popular legal areas. Includes real estate contracts, wills, pre-marital agreements, bankruptcy, divorce, landlord tenant and many others. Also included is a comprehensive attorney state directory and a dictionary of legal definitions explained in laymen's language.
Maine News Index »
The Maine News Index (MNI) is a collection of abstracts that cover substantive Maine- or Portland-related articles published in local newspapers and magazines. MNI Online covers articles published from 1992 on. For the period 1945-1992, please consult the card file index in the Portland Room. Indexed periodicals include Down East, Mainebiz, Island Journal, Portland Monthly, and Casco Bay Weekly.
Maine Newsstand »
Each issue of each newspaper is indexed thoroughly, so researchers have access to not only top news stories but also the information contained on the various sections of the papers. The indexing covers not only complete bibliographic information but also companies, people, products, etc.
MARVEL! Maine’s Virtual Library »
Thousands of magazines, newspapers, and reference books are available anywhere in the State of Maine through the online resources of MARVEL! Maine's Virtual Library, a service of Maine InfoNet.
MasterFILE Premier »
MasterFILE™ Premier contains full text for nearly 1,700 periodicals covering general reference, business, health, education, general science, multicultural issues and much more. This database also contains full text more than 500 reference books, over 107,000 primary source documents, and an Image Collection of over 510,000 photos, maps & flags. Updated daily.
Medline »
Medline is the National Library of Medicine index to more than 3,600 journals covering all areas of clinical and experimental medicine, nursing, dentistry and health administration. Updated weekly.
Morningstar Investment Research Center »
Limit of 2 simultaneous users
Visit Morningstar Investment Research Center to access this data-rich site for company, stock, mutual fund, ETF and market information from in the library or visit Morningstar at home with your library card number.
New York Times 1851-2011 with Index (1851-1993) »
This historical newspaper provides genealogists, researchers and scholars with online, easily-searchable first-hand accounts and unparalleled coverage of the politics, society and events of the time. The Historical New York Times with Index (1851-1993) provides search capability using subject terms and topics for focused and targeted results in combination with searchable full text, full page, and article-level images from the Historical NYT.
Novelist K-8 Plus »
NoveList K-8 Plus is a database about books specifically for younger readers. It helps kids find books that are just right for their reading level and interests. Parents, teachers, and librarians can also find tools to teach with books and engage young readers.
Novelist Plus »
NoveList Plus is the premiere database of reading recommendations, available through libraries around the world. It is a comprehensive source of information about books that includes expert recommendations, reviews, articles, lists and more.
Online Newsstand »
Find easy access to recent feature length articles in many of the most popular magazines organized by category. 
Opposing Viewpoints in Context »
Opposing Viewpoints in Context is an online resource covering today's hottest social issues - helps students research, analyze, and organize a broad variety of data for conducting research, completing writing assignments, preparing for debates, creating presentations and more.
Overdrive – Maine Infonet Download Library »
Overdrive is the current leader in the ebook lending market. The ebooks available here include titles for all ages and can be read on Mac or pc computers using the free Adobe Digital Editions software, or can be transferred to the Amazon Kindle, Barnes & Noble Nook, Sony eReader, Borders Kobo, and more (full guide to compatible devices). 
Portland Jewish Oral History Project »
Photographs and oral history recordings with members of Portland's vibrant Jewish community are available here online. Bringing together Portraits of the Past: The Jews of Portland Dr. Konnilyn G. Feig, Director, commissioned by the Jewish Community Center, 1976 and The Oral History Project of Documenting Maine Jewry, supported by the Maine Humanities Council, 2009. For more information, contact: dmj@mindspring.com
Reader’s Guide Retrospective: 1890-1982 »
The 1890-1982 is an online index to over 3 million articles from approximately 374 popular magazines.  Use this to search for articles and primary sources that pre-date the scope of the MARVEL!
ReferenceUSA »
Contains basic directory information for more than 210 million U.S. residents and 14 million businesses in all zip code areas of the United States. Information includes name of business, address, telephone number, headquarters, branch and subsidiaries identification, SIC codes, yellow pages headings, ticker symbol, credit rating, number of employees, and estimated sales volume. Also includes some federal, state, and municipal offices.
Science in Context »
Combines reference content with engaging multimedia resources to provide detailed coverage on the full range of scientific topics, from environmental monitoring to quantum mechanics and genetic engineering. Full text articles from national and global newspapers, magazines, and journals; experiments; video, audio, and podcasts; image galleries, weblinks, and more.
Small Business Research Center »
Small Business Resource Center  search this database to learn how to start, finance or manage your small business.  Resources include; sample business plans, how to guides, articles and websites.
Small Engine Repair »
Small Engine Repair Reference Center has repair information for lawnmowers, water craft, ATVs, motorcycles, tractors, snowmobiles and more.
Statistical Abstract of the United States 2013 »
Published annually by the Federal Government since 1878, access line-item access to tables, updated monthly, table-specific capabilities for narrowing results by source, data date, subject, type of data breakdown. Edited by ProQuest’s team of statistical experts.
TumbleBook Cloud Jr. »
Read-along books are great for early or shy readers. This collection for grades 3-8 features over 120 read-along books including classics and even Shakespeare.
TumbleBooks »
TumbleBooks are animated, talking picture books which teach kids the joy of reading in a format they'll love. They are created by taking existing picture books, adding animation, sounds, music and narration to produce an electronic picture book (and some classics) which you can read, or have read to you.
Value Line »
Limit of 2 simultaneous users
Value Line is an investment management solution, providing in-depth financial information, research, and advanced analytical tools for new and experienced investors. The Investment Survey contains up-to-date, weekly issues. For each stock in its universe it offers year-ahead and 3-to-5-year probable relative price performance, projections of key financial measures, and concise, objective commentary on current operations and future prospects.
Value Line Investment Survey: Small and Mid-Cap »
Limit of 2 simultaneous users
The Small and Mid-Cap Survey offers full-page reports on ~1800 smaller stocks. Each page contains current and historical financial information and stock price data. Includes Performance rank, adapted from the well-known Value Line Timeliness rank, and is designed to predict a stock's relative price performance for the next 6-12 months. From "Dashboard", click "Browse Research" (top), then "Small & mid-cap featured" (right side).
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