The popular video blog Rocketboom will now be hosted by Blip.tv, which is also rolling out a new overlay ad format for the show, reports ClickZ.

Blip.tv will be responsible for much of the technical infrastructure revolving around the show's distribution, including providing the RSS feed and syndicating it to other sites. The company, which will also host the show, worked for months before the announcement to transfer older episodes to Blip's servers.

The partnership brings with it a new overlay ad format. Ads will be developed using Apple's Quicktime, the first time this software has been used to actually create advertisements of this type.

Interactive agency Deep Focus will be the first to use the new format, coordinating spots for the beginning portion of Comedy Central's The Sarah Silverman Show.

The ads appear within the show, even when viewed through outlets like iTunes and others.