Open access (OA) - one stop shop directory

Hi
Few hours ago i write about Nature precedings.
Imentioned there the Open Access publishing method.
This post I want to give you, for your benefits, the directory for all the Open Access journals. It contains more than our sector (medical , biological and life science) but including as well ours categories as well.
There is, also, a search engine not just for journals but for finding specific articles.
Enjoy.