In their words...
"Site Meter is a free, fast, and easy way to add a web counter to your web page. Not only can it display the number of visitors to your web site, it also keeps statistics on the number of visits each hour and every day. It also provides detailed information about these visitors. These statistics are provided in real time so they are always up-to-date."
AddThis - Facebook - Google Analytics - Google Custom Search - Histats - Omnituire - Scorecard - Sitemeter - Specific Media - Turn