Seat Karma’s search engine collects real time ticket prices from hundreds of websites and displays them graphically over dynamic seating maps. To clarify, they don’t sell tickets on SeatKarma.com. Instead, they focus on finding you the best price and then refer you to a ticket broker to complete your purchase.
Seat Karma says:
Live event tickets are not like plane tickets; at a live event it is extremely important where you sit. A true comparison engine for live event tickets need not only analyze prices across various websites, but also compare the location of your potential seats. By combining these two capabilities we created what we believe is the most powerful search tool for entertainment tickets online.