Angel may be dead, but the show's fans sure aren't. Less than a week after the WB drove a stake through the Buffy spin-off, more than 45,000 Angel addicts have signed an online petition at PetitionOnline.com to keep the toothy drama alive. Campaigns to save the show are also being organized at numerous fan sites, including SupportAngel.org. But does any of this really matter? "It [helped] Roswell," says a WB rep. "It was as good as gone and the big fan campaign brought it back." In other words, the ball's in your court UPN.