New addition: FLASH MOB.  Google hits: 15,000.  Domainsurfer domain name hits: 1.  Trademark applications: 0.

Memes already being watched: WEAPONS OF MASS DISTRACTION (36,000 Google hits); and METROSEXUAL (8,800).

Update: Just came across The Word Spy 100.  METROSEXUAL is no. 1, FLASH MOB is no. 2.