This is a document published by the Public Knowledge Project (who make Open Journal Systems) to help open access journals publicize themselves. Of course, a lot of the advice is relevant for other open access projects in general. A note on navigation: it isn't obvious when you go to the document - there's no 'next page' or anything like that. I spend several minutes looking for the link to download the document before I realized that the menu on the left hand side is your only navigation. Here's the announcement (the links in which may also lead you astray, which is why I'm linking directly to the resource here).