Questions to ask about the site's author
Questions to ask about the site's content
Questions to ask about how the site is organized
Google Scholar allows you to search for scholarly material, mostly periodical articles from sources that may be free to access, or may not.
These sites provide links to web sites that have been critically evaluated and selected for their value as information, reference and research tools.
ipl2 combines the resources of the Internet Public Library (IPL) and the Librarians' Internet Index (LII). Hosted by The iSchool at Drexel, College of Information Science and Technology, with major support from the College of Information at Florida State University.
Internet Scout Project Archives is a searchable and browseable database to over nine years' worth of the Scout Report and subject-specific Scout Reports. It contains 26,496 critical annotations of carefully selected Internet sites and mailing lists. Located on the University of Wisconsin-Madison's campus, and part of the University's College of Letters and Sciences.