It was only a matter of time before Google will launch a similar service Alexi or Compete , called Google Trends for Websites as part of Google Trends service, which is still active in the past. The biggest problem for these services to measure, at least roughly, what site visitors in this case I think Google will be much easier because it still holds over 70% of all searches and other information for each web that uses Analytics, Adwords, Adsense and what else . In a prime position to have the tools to become more popular than others because of the accuracy of data.
If you check the data for your website I believe that most webmasters will not get the data since the low attendance. As I see it must have at least a few thousand visitors a day to get results. But we can look attractive as sites and compare them with each other. Given that many of these sites you've visited my pages sometimes are seen as publication in Analytics, and since there are some other measurements, eg Gemius, it is about to get some figures on visits to a site. Or at least roughly. Sami tool and provides a regional review visits, related sites and some keywords. Special attention to the key words for our most popular sites and see how the brand is important to visit with Google.
This is definitely a tool to which should pay attention because most sites gets the most traffic through Google, and this tool is just based on that. Bookmark.
