Consider Quality...
These principles of web source evalution are drawn from The St. Martin's Handbook, 8th edition (p. 218-219):
Authorship
Sponsorship
Currency
Credibility
The online resources below offer information relevant to your research.
Hover the pointer over each link for a description of the site.
Google Advanced Scholar Search
Chat with a librarian here!
You can also connect via text message at 619-592-8884 or by email.