PeerJ is a peer-reviewed journal-and-preprint service with a new publishing model: researchers pay a modest membership fee to publish in the journal, while retaining copyright to their work. Lifetime memberships begin at $99.
For more details, see this entry on the Wired Campus blog: http://chronicle.com/blogs/wiredcampus/new-publishing-venture-gives-researchers-control-over-access/36651
