This is interesting - Google may start listening...

http://www.theregister.co.uk/2006/09/03/google_eavesdropping_software/

Some good info on Web 2.0
http://www.demc.com/artman/publish/article_168.shtml

If you use newsletter advertising then this article will be of interest to you -
http://www.marketingsherpa.com/article.php?ident=29690

Enjoy your weekend.