Web analytics only provide insights for your own site but what if you want to know what your competitors are doing. Comscore or Nielsen only helps for sites which attract large about of traffic, over 50k monthly visitors. So which tools do you use to gather insights on the traffic of your competitors?

I have always used Alexa's free compare site feature on there front page. http://www.alexa.com you can put in three URLS including yours and compare against each other. It will show you all the analytics of your competitor and of your site and how they rank against each other on search engines.

I was not aware of that functionality with Alexa. Thanks.