Mark Cramer is CEO of Surf Canyon, a company that makes a free browser add-on for real-time personalized search. Mark explains how his add-on has come to be downloaded over 1.3 million times and how it came to be written up by Walt Mossberg. Mark also talks about add-on monetization and tells us how his company decided to make an add-on in the first place.
This interview is ~30min. If you just want the audio, here's the mp3 version. You can also get the video on your iPod/iPhone via iTunes.
Also see Part II with Mark.
For more interviews, visit the Traction Book site.