blogHUD
I got this thing called blogHUD yesterday. It's neat because it lets you chat short messages from within Second Life that wind up on a stream-of-consciousness blog over at bloghud.com. All your own messages are shown on a custom page, too. Here's mine.
The other neat thing is that the website displays a Second Life map with little markers of where recent blogs are coming from. You can click on a marker and be instantly teleported to the source of the blog, and start a fight with the blogger if you want to. :-)
Using the website, you can also filter the messages to a particular region, in case there's a lot of chatter and you want to focus on what is going on in a particular geography. There are also several standard channels you can post to, using the HUD to select them, like "news," "events," "clubs," etc.
All in all, quite neat. The website design is a little cluttered for my taste, but it's neat functionality.