Google has introduced some new features to the Google Buzz API, which launched at Google I/O back in May. This includes the much-requested firehose, which makes available all public activities on Buzz as they are published, with one subscription.

Launch partners include OneRiot, Collecta, Gnip, Postrank Analytics, and Superfeedr’s Track. "As a launch partner, OneRiot is one of the first companies to get access to Google’s brand new stream of realtime social web data and we’re doing some very exciting things with it," OneRiot’s Meredith Bagnulo tells WebProNews. "We’re using it to fuel our trending topics engine, realtime search results and realtime ad network."

"The addition of Google Buzz delivers a whole new set of conversations for us to process in realtime, bringing to the surface the topics that people across a much wider web are engaging with right now," she adds.

"We’ve had some fun coming up with cool things to do with the firehose," says John Panzer of the Google Buzz Team. "For example, Bob Aman coded up Buzz Mood, an App Engine app inspired by Twistori. By scanning for posts that contain certain keywords, Bob’s able to give us a sense for the mood across all of Google Buzz in real time."

You can bet that there will be plenty more more activity around Google Buzz from developers now that the firehose is available. The launch of the API itself was a big step forward in terms of creating a brighter future for Buzz, but the firehose opens up some real possibilities.

Developers can now integrate comments by users, likes by users, and shared counts into their applications. Documentation is here.