FOAMbase is a place to find, share and comment on FOAM (Free Open Access Meducation). The vision is to have a searchable and interactive social layer linking all the great FOAM that is being produced around the world.
You need to register and then pay a small fee for the CME credit for the posts that you review for CME.
Here is a link to the Table of Contents that gives you access to all the content on FOAMbase.org.
The site has brief articles on every aspect of emergency medicine and almost all of the blog posts and podcasts are relevant to every primary care practitioner.