TEA PARTY CROWD ESTIMATES: Nate Silver estimates “262,025, with a fair number of (probably mostly smaller) events still unaccounted for.”

The Pajamas Media citizen journalist count is pretty close, at “more than 281,000. . . . The number of participants will continue to rise as more of our field observers upload their photos and videos of the events and send us their attendance figures.”

UPDATE: Jim Geraghty counts 333,682. Meanwhile, reader Tom Glennon sends this picture from Des Moines.