Realtime LiveJournal -> Buzz
If you've seen all my "test" posts over the past few days, you probably knew I was up to something.
If you add your LiveJournal to your Google Profile (and your LJ links to your Google Profile and is crawled), and then you "Connect" your LJ to your Google Buzz account by adding it as a connected site, all your LJ posts flow into Buzz in 1-2 seconds, using PubSubHubbub.
And hopefully LiveJournal will support the Salmon Protocol so comments left in Buzz will flow back to LiveJournal, and vice-versa. But that's the future.
Much love to Brett Slatkin, the Reader team, Brian Stoler and the Buzz team, Sebastian Kanthak, John Panzer, and others who made all this work. Huge team effort, but in the end I think open, decentralized protocols will win and are the future.