Whysoserious.com/Overture
Beating the puzzle at Whysoserious.com/Bamboozle/2l43kjsa892nn2.htm brings up Whysoserious.com/Overture. The site depicts the "reaper" bomb from Whysoserious.com/l_flave2323, but this time with a countdown to 10 PM EDT on July 10, 2008.