The BlogTalk 2.0 program promises some really interesting talks. The Trotts (MovableType) are going to talk on Blogs, Bandwidth, and Banjos: Tightly Knit Bonds in Weblogging. Torill Mortensen's topic is "Dialogue in slow motion", which (when you think about it) is exactly right. Slow food; slow dialogue: the 21st century virtues. Merelo and company are going to revisit the Spanish Blogosphere.
I'll be talking about The Social Physics of Weblogs. If you're in the neighborhood of Vienna, stop by. (I'll be in Vienna all week, since it's new territory for me. Email me if you'd like to get together,)