Atlas Shrugs and BoingBoing, Victims of Google?

Recently, Google searches for phrases on the Atlas Shrugs blog have not returned results from that blog. This apparent censorship has a precedent. About a year ago, I found that a Google search for sites that link to BoingBoing gave zero results. (It got better.) I doubt if that was political and was probably just a bug in their system. In any case, Google blog searches for phrases on the Atlas Shrugs blog yield some results.

On the other hand, they might not be that eager to fix a bug until it strikes somebody they don't like.

The real question is why Google is still using secret algorithms instead of open source. I thought “security through obscurity” was supposed to be obsolete.