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Now Available: Innovators Under 35 2013 See The 2013 List »

Dennis Crowley, 29

Moving online socializing into the streets

Dodgeball

When Dennis Crowley goes out clubbing in New York, hell text a message with his location to Dodgeball, the company that he founded. Crowleys message -- "@ Luna Lounge," for example -- goes out to all the friends he has listed at the Dodgeball website. The companys computer checks the clubs address against its list of geographical locations in 22 cities. If someone who is not on Crowleys friend list but is on the list of one of his friends has checked in within the last three hours and a 10-block radius, the computer notifies both parties. If Crowley has listed a girl he doesnt know as a "crush," shell get a message with his picture saying hes interested. Shell have the option to find him or dodge him, without his ever knowing where she is. Google liked the idea so much it bought Dodgeball in May. Crowley says its "a very powerful thing to know where your friends are all the time."

2005 TR35 Winners

Parham Aarabi

Sharpening a computers listening skills

Regina Barzilay

Teaching computers to read and write

Stewart Butterfield

Building communities through photos

George Candea

Protecting software from crashes

Bryan Cantrill

Tracing software in real time

Andy Carvin

Bringing Internet power to the have-nots

Narashima Chari

Setting the mesh networking standard

Bram Cohen

Upending the file-sharing world, bit by bit

Dennis Crowley

Moving online socializing into the streets

Tracey Ho

Scrambling bits for a more efficient Internet

Samuel Madden

Simplifying wireless sensor nets

David Pennock

Predicting the future of markets

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