Commercial Alert, the anti-advertising watchdog group that signed up 211 medical professors against DTC advertising in October, is extending its anti-DTC campaign with a Web site. Stopdrugads.org asks visitors to write the FDA via an editable form letter asking the agency to “Please stop prescription drug ads before they create another Vioxx catastrophe.” Gary Ruskin, executive director of the group, said the site will be promoted virally and to the group’s 8,000-name listserve. “The FDA is asking for comment on DTC, and we want to make sure that thousands tell them to shut it down,” said Ruskin.