I had seen the second video - I think it was yesterday - abd the first one appears to have been posted today. I too am watching and reading everything I can. It's amazing what has been going on, changing hourly. If it weren't for twitter, facebook and youtube the information would not be available to the rest of the world.
Neda Agha-Soltan (1982 – June 20, 2009) a young Iranian woman who was shot, allegedly by Basij militia, during the 2009 Iranian election protests
http://en.wikipedia.org/wiki/Neda_(Iranian_protester) - the video of her dying withing 2 minutes broke my heart, she's so very young. That image of her tragic death, with her father at her side, was broadcast all over the world and will not be forgotten.
You can follow the twitter messages - it's constant - 24 hours a day
http://twitter.com/#search?q=%23iranelection (sadly, today some porno spam has appeared on this thread, such idiots out there!)
Facebook group here
http://www.facebook.com/pages/IRAN/18297877889More info here Iran Updates (VIDEO): Live-Blogging The Uprising
http://www.huffingtonpost.com/2009/06/13/iran-demonstrations-viole_n_215189.html