Part two:
<a href="http://blogs.msdn.com/b/ericlippert/archive/2012/04/30/guid-guide-part-two.aspx" rel="nofollow">http://blogs.msdn.com/b/ericlippert/archive/2012/04/30/guid-...</a>
Part three:
<a href="http://blogs.msdn.com/b/ericlippert/archive/2012/05/07/guid-guide-part-three.aspx" rel="nofollow">http://blogs.msdn.com/b/ericlippert/archive/2012/05/07/guid-...</a>