clipped from: www.huffingtonpost.com   
Solidarity. An Israeli woman takes part in a demonstration in Tel Aviv
CLICK HERE FOR LIVE-BLOGGING ARCHIVES
Bon Jovi, Iranian singer Andy Madadian record 'Stand By Me' tribute

TV Guide covers the video here:

11:30 AM ET -- Thousands march silently in Tehran.
"About 5,000 protesters marched slowly and silently through Tehran Sunday
Iranian officials crack down on Tehran march
Witnesses at the scene tell The Associated Press that some protesters claimed they suffered broken arms or legs in Sunday's clashes around the Ghoba Mosque

Via a reader, this site reports that, in addition to Karroubi and Faezeh Hashemi, "Ayatollah Ghafari and Mustafa Malikyan participated in the ceremony. Mousavi talked by phone to the people."

Mehdi Karroubi, the other reformist candidate to run in the presidential election who has now allied himself with Mosuavi, marching along with the crowd
Video of police crackdown

Two more lower-quality videos apparently from today are here and here.