Are you familiar with the Blog Carnival phenomenon? It’s interesting. Different blogs take turns periodically summarizing and linking out to other blogs writing about the same topic. Yesterday saw Carnival of the Green #23. It’s a good way to discover new blogs and get some human editorial vision on highlights in a given space. There’s a directory of a huge variety of Blog Carnivals at BlogCarnival.com. I just subscribed to the feed so I can highlight interesting new ones when they appear.