Porter Novelli Chief Marketing Officer Marian Salzman begins her new job at her former employer Euro RSCG Worldwide today, according to her Twitter feed:

“Looking forward to my first day at Euro RSCG Worldwide PR. Am very bullish on PR, and think PR will own social media and brand communities.”

She leaves the Omnicom firm (NYSE: OMC) after 18 months on the job, her first at a PR agency after a storied career in advertising. Salzman is known as a trendspotter, most notably for coming up with the term “metrosexual”.

Her title is President, Euro RSCG Worldwide PR North America. From 2001 to 2004 she was on the ad side as EVP, Chief Strategy Officer

Her farewell blog post lists the programs she presided over including Porter Novelli’s pop-up fashion firm Jack + Bill, representation of SXSW, Shorty Awards, and Tweet to ReMIND, the Bob Woodruff Foundation effort to help Veteran.

She also promoted PN as a talking head on network and cable news shows (see Porter Novelli’s YouTube channel for clips).

Related: Jack + Bill Announce Winners of Free Fashion PR