Podcasting community blubrry announced a 31 percent ad revenue increase for the second quarter of 2010, reflecting new ad buys on 27% more shows hosted on Blubrry, Tech Podcasts Network and other RawVoice subsidiaries.

CEO Todd Cochrane attributes the increase to podcast advertisers seeing a healthy return on their investment and because of their podcasts’ availability on multiple platforms.

“Our strategy of multi-platform distribution is exposing new audiences to our content creators on venues that accommodate their lifestyle needs,” says Cochrane. “We are continuing to focus on multi-platform distribution for the shows that are part of the network..”