Μετρητές επισκέψεων

http://www.google.com/analytics/
Google Analytics now makes the features that experts demand easy to use for everyone. Gain rich insights into your website traffic with Advanced Segmentation, Custom Reporting, Motion Charts, and more.

http://sitemeter.com/

Site Meter Can Provide the Answers!
Site Meter’s comprehensive real time website tracking and counter tools give you instant access to vital information and data about your sites audience. With our detailed reporting you’ll have a clear picture of who is visiting your site, how they found you, where they came from, what interests them and much more.