Mark Stone has a long history with collaborative communities. At O'Reilly he was Executive Editor for Open Source, Editor–in–Chief of the Journal of Linux Technology, co–edited the seminal essay volume Open Sources, and participated in the first Open Source Summit. At VA Linux Systems Mark led the web arm of VA's open source evangelism effort, supervising the Linux.com launch team and working as part of the executive team behind SourceForge.net and Slashdot.org. As director of SourceForge's developer relations program, Mark provided guidance to technology companies looking to interface with the open source community. More recently Mark has been consulting with Microsoft's Platform Strategy team helping evolve Microsoft's global open source strategy. His current position is as Deputy Director of the newly launched CodePlex Foundation, dedicated to helping corporations like Microsoft increase their participation in open source projects.