Microsoft has to deal with governments and corporations. And the opensource page at <a href="http://www.microsoft.com/opensource/" rel="nofollow">http://www.microsoft.com/opensource/</a>  is an answer to the question: "What is MS's policy towards opensource" and similar questions.<p>For developer's there's always <a href="http://www.codeplex.com" rel="nofollow">http://www.codeplex.com</a> and <a href="http://port25.technet.com/" rel="nofollow">http://port25.technet.com/</a> which <a href="http://www.microsoft.com/opensource/" rel="nofollow">http://www.microsoft.com/opensource/</a> points to.