TwitterCounter Stats: We Track & Analyze
W3Counter - Free Web Counter, Web Stats, Live Analytics
Hitscreen.com- Free invisible hit counter and free web stats
OneStat.com - provider of web analytics and free counter.
The Free Tracker test - tellertest.com
GoodCounter.com - free web counter with invisible counter option
Active Meter: Free Invisible Hit Counter, Web Tracker, Web Analytic and Web Stats
RiteCounter.com - Free Invisible Web Counter and Statistics