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Databases: O

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OAIster is a searchable online catalog of digital resources, including digitized (i.e., scanned) books and articles, born-digital texts, audio files (e.g., wav, mp3), images (e.g., tiff, gif), movies...more info

Open-Access Text Archive

This site features a wide selection of e-books that have been contributed from publishers, universities, and individuals. Most of the texts are in DJVU or PDF format. Free to read, download, and...more info

Optics InfoBase

InfoBase is the Optical Society of America's online repository of both current and past volumes of all its journals (citations only, no full-text). It also contains recent proceedings from OSA...more info

Oxford English Dictionary

Online edition of the definitive dictionary of the English language. Find word definitions, etymology, date charts, and more. more info