Notice that each item has a RT link. Click on one. A dialog appears, asking for the domain of your linkblog. I enter r2.scripting.com, the domain that my copy of Radio2 is running on. Radio2 is linkblogging software. The river then saves the domain as a cookie so I don't have to enter it again. (You can change it with the Set Linkblog command in the menu at the top of the page.)
After configuring the domain, when you click on an RT link, we go to your linkblogging software, and pre-populate the entry boxes with the title, link and description of the post you came from.
It does basically what the "retweet" command does in Twitter. But it's all loosely-coupled. You can connect it up to any linkblogging tool that supports the parameter list that's sent. It's as we say "really simple" -- doesn't take very long to implement. But it provides a very nice kind of de-coupling. You can use whatever river software you like and whatever linkblogger you like. And they just work together, if everyone does a little to make it work.
Since we're very early in the era of linkblogging on the Internet, it seems like a good time to put something out there.
PS: People often ask the question of how New Orleans will get by without a daily paper, and they say no one has an idea. Like when people used to say there was no new Mac software when there was lots of new software. The river I point to above has a lot of news about New Orleans that most people aren't getting. That's how the reboot starts. By creating new conduits for news to flow through. And listening to people who want to participate.
PPS: There's another potential standard hidden from view in the source code for the river. There isn't actually any content in there, it's just a jQuery app that displays a JSON-structured news feed. Another de-coupling that could prove useful.