As of Saturday, eight artists have decided (as coached by project organizer Michael Mandiberg, the net artist) to trade lives for a week and a half, guided by instructions on how to be someone else. The eight, who reside in either Toronto or LA -- two cities that are important backdrops for Hollywood role-playing, no less -- are Heather Cassils, Lauren Hartman, Sara Jordeno, Curt Lemeiux, Michael Mandiberg, Melanie Nakaue, Amy Satterthwaite, and Haruko Tanaka. They'll swap everything, from friends to refrigerator contents. Read all about their adventures at ExchangeProgram.org (a DVD featuring the online diaries will be released in July).