With the rise of digital publication comes a host of new publication models that enhance the speed of publication and the accessibility of the objects published. These include:
IRs, like TigerPrints, can distribute material published in other venues, but can also serve as a platform to publish unique materials (Books, Posters, or other types of scholarship). In addition, many IRs support online e-journal publication.
The Stanford Encyclopedia of Philosophy is an excellent model for distributing research openly and quickly without charging authors or readers.
Many libraries and universities (PDF) are playing increasingly active roles in disseminating the scholarship produced on their campuses.
Publishing with an OA journal insures that your work will be published rapidly and that you will retain ownership of it. In addition, research continues to suggest that making your work OA, in any form, increases its impact. Some OA journals charge Author Processing Fees, but many are supported by grants or endowments, universities and libraries, or freemium models. Upstart journal PeerJ is even supported by an interesting membership model.