1. This is a link from Leeds University to some very good free online Communication Journals.
http://ics.leeds.ac.uk/papers/vp01.cfm?outfit=cicr&folder=30&paper=31

2. This is the link to Journal of Computer Mediated Communication at Indiana University.
http://jcmc.indiana.edu/

3. Access to Thousands of books at University of Pennsylvania.
http://www.digital.library.upenn.edu/books/