With so many people addicted to Twitter, it would be neat to view a chart of a person's tweets statistics, giving an insight into their habits and usage patterns.
Powered by Yahoo Pipes & Google Charts, xefer allows you to create scatter plots and charts of a Twitter user's tweets. You can choose to view the data by hour, day of the week, month or a combination of those.
I am not sure what practical use such a tool will serve, but I think it is cool nonetheless.
Twitter Stat Tools
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