http://www.sharepointjoel.com/Lists/Posts/Post.aspx?ID=68http://msdn.microsoft.com/en-us/library/bb447511.aspxhttp://blog.sharepoint2007.com.au/2009/06/23/using-spchangequery-in-a-new-site-spweb/
http://blogs.msdn.com/feldman/archive/2007/11/18/writing-to-the-sharepoint-trace-log-in-your-code.aspx