Rally to Restore Sanity Attendance: Crowd Estimate?

Jon Stewart and Stephen Colbert’s “Rally to Restore Sanity and/or Fear” in Washington, D.C. was today. I would like to know the attendance of the event.
Is there a crowd estimate?
The Rally to Restore Sanity started out as a response to the "Restoring Honor" rally by conservative commentator Glenn Beck at the Lincoln Memorial this summer.
Can anyone let me know what the attendance estimate is? Which rally had more people, "Rally to Restore Sanity" or Glenn Beck's rally?

The crowd was enormous. Crowd sizes are notoriously hard to judge, but Comedy Central, which broadcasts The Daily Show, estimated the crowd at 250,000.

Jon Stewart estimated the crowd attendance at 10 million. And Stephen Colbert offered his own guess in a Twitter message that read,” "Early estimate of crowd size at Rally: 6 billion. "The rally drew young and old from all over America. Judy McGrath, the chief executive of Viacom's MTV Networks unit, said she had been told by the Parks Service that there were "well over 200,000 people" in attendance.

The rally officially kicked off at noon with many spectators showing up early. The New York Times estimates attendance around 200,000 and NPR said attendance was around "easily tens of thousands."

The Fox News Channel reported today that the turnout for Jon Stewart's "Rally to Restore Sanity" was underwhelming at best, with Fox sources estimating the total turnout at seven people.