Something that impresses me : the new active blogrolls in Blogger.
I think there's something very profound here. There was a danger that the blogroll would atrophy into a mere historical curiosity as people moved to using dedicated RSS readers to follow their friends.
But suddenly the situation is reverse.d The blogroll becomes your RSS reader. And it's the dedicated reader which is starting to look somewhat dated. Not only that but by adding second degree flow to the web (ie. people who read me also see what's up-to-date with the people I read) everything feels like its moving even faster.