SHERPA brings you information on new publishing models with broad information on new-style copyright agreements, plus general information about Open Access (OA) publishing. Start with the section Guidance for Authors:
What is Open Access
Journals' Copyright Policies
Open Access News
Advocacy materials to promote repositories & general resources, reports, and more
Resources and Projects world-wide
Directory of Open Access Journals (DOAJ), the list of free, full text, scientific & scholarly journals. Searchable by journals, articles, subjects. Includes 9,073 journals (May 2013), a 25% increase in the last 2 years. Now includes 119 countries, and has passed the 1 million mark for articles offered.
Publishers' Copyright Agreements, including the categories of publishers and their conditions (Green publishers allow archiving of both pre-prints & post-prints).
Publisher and Journal Profiles, University of California. Journal data: price, impact factor, publisher, price increases; UCA compilation, yet useful for comparisons.
Open Access Information
Brief Introduction about OA Publishing, by Peter Suber (Earlham College).