Here's how PowerPromote works: A user lists their gig information on the PowerGig site, including performer and venue (location), and checks the PowerPromote checkbox. PowerGig collects all the gigs with the PowerPromote(tm) option, and re-submits them to the following sites:
www.Tourdates.com
www.Pollstar.com
www.CitySearch.com
www.Mojam.com (www.Musi-Cal.com)