U.S. President Barack Obama teamed up with LinkedIn for a town hall about creating jobs and growing the economy, streamed live online today. The town hall was part of the President’s effort to promote the American Jobs Act, a bill he introduced earlier this month at a joint session of Congress.

We used Social Radar to analyze conversations online.

LinkedIn buzz

Buzz around LinkedIn today following President Obama’s town hall increased slightly, but LinkedIn mentions were higher in May following its IPO.

We reported last week that Facebook buzz increased significantly following its redesign and f8 conference. How does Facebook buzz compare with LinkedIn?

LinkedIn vs. Facebook buzz

Facebook mentions dwarf LinkedIn mentions online. Facebook buzz is at its highest point in the last six months by a large margin.

LinkedIn sentiment

Conversations around LinkedIn the last 30 days have been extremely positive. Today sentiment around LinkedIn is 91% positive.

Facebook sentiment

Conversations around Facebook the last 30 days have been an average of 72% positive. Today sentiment around LinkedIn is only 59% positive.

President Obama has been busy during his first 100 days in office — confronting an economic crisis, addressing rising healthcare costs, promoting clean energy innovation and restoring confidence. Nearly two out of three Americans approve of the job Barack Obama is doing as president. We decided to measure web chatter volume for the biggest issues during President Obama’s first 100 days. Not surprisingly, chatter around the stimulus package led all topics overall. But at the moment, healthcare is the hottest topic.