The Microsoft-Yahoo Blog Swarm
If you really want to see a blogswarm, let a significant technology story break. Microsoft's February 1, 2008 announcement that it wants to buy Yahoo is such a story. Tech bloggers are all over it like a swarm of bees on a honeycomb. If you've never seen an example of this, go over to TechMeme and Megite, two prominent aggregators of technology news.