Sylvie Noël is seeing the same thing I am - splogs are starting to choke the various blog search engines:
If you've got a PubSub account, you've probably come across these in the returns from whatever search term you've put in. I find them very annoying, as they drown out the few interesting new blogs that PubSub sometimes throws my way. In fact, it's destroying the usefulness of PubSub for me.
It's not just PubSub either - Feedster is being run over by splogs, and those blasted ads that Feedster is returning (as full items) are annoying as heck. I'd much prefer to see an ad tacked onto an item - the bozo ad items are not a lot better than spam. Technorati is getting washed and waxed by splogs too - add that to their frequent inaccessibility, and you have a service that's getting less useful all the time.
The damage just spreads...