More info available at Alexa
Alexa now includes 3 additional pieces of information: Reach, traffic distribution by country, and traffic rank by country.
Snapshot: Alexa Competitor
Compete.com released Snapshot, which like Alexa offers free web site traffic report. There are several differences between Snapshot and Alexa:
1. Alexa shows data down to the daily level, while Snapshot shows data at the monthly level.
