We have been a subscriber of Hitwise for almost 12 months and we have recently terminated our contract with them. Hitwise is a company that provides information on where your visitors are coming from and which sites are they leaving too. The data is unique because it’s extracted from the various ISP all over the world. Large media sites that sell advertisements on their sites use the data to educate their potential clients on where their customers are coming from and going away to.
It does have a section which allows one to conduct keyword research, you can basically find out the keywords your competitors’ sites found by their visitors. Annually, highly visited websites are recognized and awarded by Hitwise based on the data they have compiled. Check out some of the latest stats offered by Hitwise.