Project Gutenberg

a collection of, well, everything:

a collection of articles concerning US national security:

various ebooks:

ERIC search engine:

ADS abstracts:

biology and genetics links:

chemistry software and links:

physics and math references:
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I used to download and read books from project Gutenberg in the early 90s. We had a crappy modem based connection then and the internet was a quasi text style script with nothing resembling HTML. You could only see images by downloading and opening them in an image program like paintshop. Most of the stuff required winzip and took ages to download. The telephone bill was horrendous.

Boy how things have changed. :)
The site ( contains a list of links to free e-books and digital libraries such as Project Gutenberg and Internet Archive.