Stubhub is one of our ticket providers although we'll be competing for the same traffic. And yes Stubhub rocks - our other providers are so far behind them it's not even funny.
Thats what I thought at first sight, but its not exactly true.
If all you want is a cheap ticket than stubhub seems like the place to go, stubhub is the cheapest on all of the ticketstumbler searches I have done.
However, If you want something rare like courtside at the lakers.. Stubhub might not always have it, but ticketcity or some other place will. Thats where the value of TicketStumbler comes in I think. Its a useful site.
TicketsNow (coming soon to TicketStumbler) is close behind Stubhub. Ticketnetwork is pretty big too. The real value we provide is showing the niche places. I never used to fly Jetblue or Frontier airlines before Kayak.