a list of 50+ similar services that are absolutely free and require no e-mail registration to use. Included in the list are file size limits, download limits and the amount of time the file remains on the server for download.
provides direct links to over 7000 scholarly periodicals which allow some or all of their online content to be viewed by ANYONE with Internet access for free
This site provides a free physics textbook that tells the story of how it became possible, after 2500 years of exploration, to answer such questions. The book is written for the curious: it is entertaining, surprising and challenging on every page.
remaking the classic 1984 arcade game Marble Madness by Atari. The graphics are slightly enhanced to bring them on par with modern standards: there is now a full 3D mode in addition to the usual isometric perspective one
a runtime verification tool used in testing applications for compatibility with Microsoft Windows XP. This tool can be used to test for a wide variety of known compatibility issues while the application is running.
quickly compares multiple documents searching for copied and pasted fragments of text. Suspicious findings are reported in the convenient format that shows just what you need to see. Plain text, HTML files, and numerous word-processing formats supported