UPDATE 4/3: NEW DATE: All Library locations are closed until Monday, May 4. As we receive new information, we will update you on our website and social media. Please hold onto all library materials as staff will not be in the building. There will be no overdue fees incurred during this time. See our COVID-19 information page for links to current health information. Reference will be answering questions Mon-Sat, 10am-4pm, 871-1700 x725. If you would like to open a temporary eResource library card, please email us at lending@portlib.org
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Online Resources

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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 Digital Maine Library.
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.
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