Satish Dharmaraj is a partner at Redpoint Ventures and lead investor in posterous, former angel and was CEO of Zimbra, which sold to Yahoo ($350M). Satish gives the investor perspective on getting traction and explains how Zimbra got traction through an open source community, PR and product/market fit. Satish also comments on idea generation, posterous and onebox.com.
This interview is ~40min. If you just want the audio, use the mp3 version. You can also get the video on your iPod/iPhone via iTunes.
For more interviews, visit the Traction Book site.