Today I want to give you another great free tool.
The fastest way to measure your competition Stay on top of rivals with site metrics and audience profiles for the top 1,000,000 web domains.
The best competitive search metrics - period. Identify rival search marketing strategies to take your SEM and SEO efforts to the next level.
The most complete view of online traffic. See where your site fits into the bigger online picture through ranked lists of up to 500,00
I think this will take over from Alexa as time goes on.