Yahoo! Mail service is currently #1 as far as usage in the United States, with 63.6 mln unique US visitors in July 2005, according to comScore Media Metrix. AOL ranked #2 with 48.7 mln visitors, followed by MSN Hotmail (44.4 mln), Comcast Webmail (5.6 mln) and Google’s Gmail (5.4 mln).