A new Forrester report divides the U.S. online population into six groups according to their social participation on the Web.

More than one-fifth of those classified as Creators—those who blog, publish Web sites, upload videos, or participate in other content creation activities—own Macs, while only 12 percent own Dell computers.

The majority of Spectators (they read blogs, watch videos, and listen to podcasts) own Macs while the majority of Inactives (they don’t participate online) own Dells.