Gleanings: Videos from Virginia, Cooks from New Orleans, Film Festivals From San Francisco...

• NBC's controversial airing of excerpts of Cho Seung-Hu's video confession before killing 33 people at Virginia Tech last week.
• World Changing: Why Earth Day has served its purpose and must be put to rest.
• Salon.com: A group of Southern Chefs is raising money to rebuild the New Orleans house and kitchen of Willie Mae, the queen of Creole cooking.
• Times Online: Will the May 5 release of Spiderman 3 be the salvation Sony needs (via Arts Journal)?
• New Statesman: Is there such a thing as "authenticity in popular music? (via AL Daily).
• Variety: Last week, Dave Chappelle performed a 6-hour stand-up comedy set, the longest in the history of the Laugh Factory, where the feat took place (via Kottke.org).
• A short history of the pocket hankerchief (via AL Daily).
• Information Week: Rolling Stone magazine is planning a social network (via Largehearted Boy)
• The 50th San Francisco International Film Festival begins this week