I've uploaded HTML versions of the XLinq Overview, XLinq Overview Diff (Sep 2005/May 2006) and XLinq SDK Reference to the XLinq.net portal. I don't fee it's right that I have to install heavy preview-quality package into my system just to be able to read these stuff. Or may be I just used to MSDN online. Diff is also cool for lazy/busy devs like me. Anyway. Btw, XLinq Overview link at the LINQ Project homepage points to the old September 2005 version.