Via Scoble, I ran across two meme/search services I hadn't been aware of - Blogniscient (which is in somewhat the same space as memeorandum), and Digg (which looks like it's a cross between that space and straight blog search).

Right off the top, Blogniscient just fails the seriousness test for me. Why? It doesn't provide either RSS or Atom. Well heck - I don't track stuff via the browser anymore - I use an aggregator. Which is not to say that they should be XML only, but they sure as heck ought to be offering it. I don't have the time to hit bookmarks folks - get with the program :)

Digg is an interesting beast - it looks like a cross between memeorandum and feedster, and - like both - it offers syndication services. I was able to add Digg to my list of search providers in BottomFeeder quickly - their syndication feeds follow a nice simple format. I'll check back with Blogniscient from time to time, but until they offer syndication, they'll be mostly off my radar.