[gabestein]

Adding to the list of great options here: I'm part of a team based out of MIT that has been building an open-source, hosted journal publishing platform called PubPub: https://pubpub.org

We're part of a group trying to address some of the larger ecosystem problems in knowledge creation and ownership discussed in this thread called the Knowledge Futures Group (https://kfg.mit.edu/). We've just setup a discourse forum for folks interested in working with us (https://discourse.knowledgefutures.org).