A new project just launched today called the Romance Wiki. It utilizes the same software as Wikipedia, the popular online encyclopedia that anyone can edit. I use Wikipedia a lot when I'm looking for general information on all types of subjects.
The Romance Wiki intends to be an encyclopedia for all things related to the romance writing industry. It looks very new still. Information still seems to be limited, but it will be fun to watch it grow. I think it'll be a great resource for writers to promote themselves and their books.
Their official release about the site can be found on its "About" page.