Podcasting Ad Network Raises $4 million

Kiptronic, an advertising network for podcasting, has closed a $4 million round of financing. Investors include Blueprint Ventures and Prism VentureWorks. The company had previously raised $400,000 in angel funding.

The company was founded in May 2005 but didn’t launch its current product, a marketplace for podcasts, until January 2006. They have an important partnership with Libsyn, running all of the ad infrastructure for the Libsyn podcast hosting.

Kiptronic is based in San Francisco and has seven employees.