I'm wondering if there is a tool that will show you the top traffic sources of your competitors. Of course there is Alexa and Compete which tend to work pretty well as a guideline to see how much traffic they are getting, but I'm looking for a tool that can also tell me where that traffic is coming from, or at least the bulk of it.
use Yahoo! Site Explorer tool and backlinkwatch to know about the backlinks of your competitors' sites as these are the places where traffic comes from. to know the exact stats you need to hack into their analytics account
use stat counter it best statcounter.com it is free and easy apply for account create a site and copy paste code into your sites that easy .....
after reviewing the topics here about traffic analysis... it would seem that trying to track your competitors keywords and traffic is very competitive.. I honestly believe as a search engine optimizer and a longtime Web friendly competitor.. focusing on your competitors keywords trying to manipulate them by using them in different phrases you would highly benefit from this tactic.................. Focus on your target domain words in title tags and meta-data structure.......