With no introduction, here is the saturday link list..
Heise has hosted a discussion about Open Source with various topics from the open source yearbook 2007 to the issue of open source vs. free software. They have videos which are waiting to be downloaded.
Martin Michlmayr has studied 6 projects (debian, gcc, plone, openoffice.org, gnome, linux kernel and x.org) regarding their problems with release scheduling. He points out their specific problems and how they have solved or how they want to solve them. Now he published his findings in an article on his blog.