W3Counter - W3Counter lists visits, referrals, browser versions, resolution, and operating systems used to view a site.
HitWebCounter - HitWebCounter is a free website visitor counter.
ShinyStat - ShinyStat is a web tracker with visits and online counter.
RevolverMaps - RevolverMaps are a collection of real-time visitor statistics widgets for the website or blog.
Histats - Start tracking your visitors in 1 minute!
Free Online Users - Free Online Users provides solution to analyze and monitor all the visitors hitting the website in real-time.