Avoid to use "id", "sid" in your url's. Example:
www.yoursite.com/gohere-id12.php
www.yoursite.com/gohere.php?id=12
better use:
www.yoursite.com/gohere-page12.php
cos Google for example removed all my pages from it's SERPS with these "ID".
I suppose ID page removal by google is good idea but not allways the best cos it may miss high content pages with such strategy...