Quantcast

http://quantcast.com

Quantcast is an independent media measurement service that finds basic traffic patterns for mainstream and niche social networks. What’s valuable about Quantcast? It serves up free reports on audience composition, making your job as a market researcher easier. You can find a list of the top million sites and then dig deeper to find where your audience goes online. Alternatively, you can compare sites via a search box on the home screen.

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