Some good stuff on Social marketing and Web 2.0

Info on personalized search -
http://www.clickz.com/showPage.html?page=3626440

Good tips for wikipedia -
http://searchengineland.com/070717-113550.php

Building an audience on MySpace
http://searchengineland.com/070703-135507.php

A good blog on trends - mobile particular but 2.0 stuff as well.
http://www.m-trends.org/

Enjoy your Thursday.