Overwhelming.
http://twitter.com/#search?q=%23iranelection is better, though.
Update.
http://www.chartingstocks.net/2009/06/proof-israeli-effort-to-destabilize-iran-via-twitter/
An answer from Jerusalem Post.
And then http://www.chartingstocks.net/2009/06/jpost-removes-the-evidence-and-issues-a-response-iranelection/
Update. http://shooresh1917.blogspot.com/2009/06/minute-by-minute-with-revolution.html