People Search Interesting Customizing Information

The following blog lists some good information about SharePoint People Search, and some problems / limitations which you will probably encounter when extending the Out of the Box People Search functions:

http://blog.mastykarz.nl/sharepoint-people-search-lessons-learned-covering-basics/

Extending ... both programatically and not

http://blog.mastykarz.nl/sharepoint-people-search-lessons-learned-programmatically-running-search-queries/

Changing the stuff on the My Profile page:

http://www.wssdemo.com/Blog/archive/2009/03/05/SharePoint-User-Profiles-and-My-Sites.aspx