Choosing drill bits

http://www.lowes.com/lowes/lkn?action=howTo&p=BuyGuide/DrlBtsBul.html
http://www.creativehomeowner.com/index.php?pane=project&projectid=chtls007
http://www.rd.com/content/openContent.do?contentId=19562
http://cottagesmith.com/Articles/BuyingDrillBits.html