Open Science Directory - FREE contains just over 13,000 free journals, including the Directory of Open Access Journals, and peer-reviewed journals covered by High Wire Press (Stanford University - the largest archive of of free full-text articles in science and medicine). Easy identification of issues and available years.
How Stuff Works - "explains simply, with excellent diagrams or pictures, how many common appliances, machines, and technologies work."
Ten Cool Sites in Science - from the Exploratorium. Every month's site puts up listings of new sites that have been reviewed. Previous choices are available in a subject organized archive. There is a separate archive for Math, mostly for teachers K-HS.
World of Science - Eric Weisstein's comprehensive and interactive, searchable encyclopedia of astronomy, scientific biography, chemistry and physics, and mathematics.
Selected Internet Resources in Science and Technology - from the Library of Congress Research Centers; links to government agency sites as well as outside links for almost 40 different subject areas in the sciences. Great first stop on your research journey.
ACM Digital Library - Summaries and article information [not full text] from the publications of the Association for Computing Machinery, the leading organization in computing.
Climbtheladder - In-depth guides for computer science and IT related careers.
CNET - Provides technology information for buyers, users, and sellers.
Internet Archive - Wayback Machine can look at a Web site and track how it has evolved [see how events like 9-11 were recorded digitally] Now contains over 85 billion archived Web pages.
Webopedia - Online dictionary and search engine for computers and Internet technology.
What is - definitions for thousands of the most current IT words.
