Web Analytics helps measure the vital stats about the website like traffic, leads & others. There are many free Web analytic tools available Google analytics, open source based analytics & others. These give the information which are not sufficient for advanced decision making. There are some advanced tools like Omniture test & target which can be used for better decision making. If you want to track phone leads as well, many programs are available which can be integrated to your normal analytics. With social media, it is also possible to track web 2.0 analytics. This helps measure the consumer sentiments & also brand analysis. There are many statistical packages available which can be used for advanced data tracking.