How do you decide whether a technological development is significant or not? Here's a simple rule: if the mainstream media — as represented by, say, Daily Mail columnists — are baffled by, or contemptuous of, it then it's probably worth paying attention to.
As we watch Feedburner crash and burn even worse than ever before, Dave Winer has decided to put his money where his mouth is, so to speak. At the beginning of this month, he announced that he's building Feedsqueezer, a Feeburner competitor that may end up being the only viable option we'll have when it comes to feed management.
Yammer is opening up its microbogging platform. In "Yammer Community" people may now create a community without the requirement that an email address be associated with a particular domain.