Please add to the discussion:
Though the idea of publishing in open access journals is relatively new to the scholarly community at large, just as it is in the fields of ophthalmology and dermatology, many start-up open access journals such as BMC Dermatology and BMC Ophthalmology--published by BioMed Central--have arisen in order to fulfill the growing demand for such venues of open access publishing opportunities in these areas.
Other journals like the Indian Journal of Dermatology, Venereology and Leprology, published by Medknow, which were once solely subscription- and fee-based have chosen to evolve into an open access format. The Community Eye Health Journal is freely available online with an optional paid print subscription provided free of charge for those in developing countries.
Almost every single online open access journal contains web pages for authors on how to publish and how to become a peer reviewer. Often these informational pages include instructions on preferred article formats for submission as well as online document submission functions.
Keep in mind that all journals publish uniquely, and each journal operates according to its own version of open access publishing. Annals of Surgical Innovation and Research allows authors to retain copyright of their work. Medknow does not charge any article processing fees for its journals.
The Canadian Medical Association Journal (CMAJ), made accessible online by HighWire Press, does not charge any per page submission fees to authors. However, a recent firing of the editorial staff of this journal--surrounded by rumour and suspicion--was the pre-cursor to Open Medicine. See the Why Open Medicine? link at the end of this page. To learn about the story, read the CBC news online article: New open-access medical journal, offshoot of CMAJ firing fight, is launched.
On SHERPA/RoMEO you can look up publisher and journal copyright and publishing policies through the search function or check out the entire list on the Publisher copyright policies & self-archiving page. SHERPA recently announced that RoMEO has doubled its entries this past year, amassing a grand total of 300 self-archiving publisher policies.
Authors may use arXiv.org pre-prints to pre-peer review.
The physics giant, CERN, has been an instigator and supporter of the open access movement in physics--as well as to a wider audience--and is a wonderful resource for any scholarly group or individual wanting to learn more about publishing and writing in open access. Check out the CERN Action on Open Access page for details.
Many start-up open access journals are using open source, open access software specifically for this purpose such as OJS: Open Journal Software. This software is tailored towards open access publishing. OJS is already being used for translation as a language platform, which hints of an ambitious future--open access which is accessible to any person regardless of language.
ALPSP : Association of Learned and Professional Society Publishers : Shaping the Future of Learned and Professional Publishing
Science Commons' Subject Resources for
Open Access and Scholarly Communication Scholar’s Copyright Project
SPARC's Resources for Authors
Charles W. Bailey, Jr.'s Scholarly Electronic Publishing Bibliography