The Fighting Splog blog has some recommendations for Google
The recommendation are:
- Advertisers and online marketing companies should stop doing business with spammers.
- Blogger could put limits on various activities.
- Put a timed moratorium on newly created blogs.
- Template tampering prevention is needed.
- “Mark this comment as spam” feature is needed.
More details on each of these can be found in the original article. I think these are all good suggestions, and I have one more:
Stop indexing splogs. I’m sure all those engineers at Google can figure out how to tell splogs from real blogs. They should not show the splogs in the new Google Blog Search. They also shouldn’t be giving any PageRank mojo from splogs.

on October 20th, 2005 at 4:51 pm
Why not force all new blogs hosted on such services as Blogger/BlogSpot to have their [robots.txt] files set to disallow any indexing by (compliant) search engines?
User-agent: *
Disallow: /
The owners of such blogs might be required to manually request human vetting before being allowed to change their [robots.txt] files, perhaps after a reasonable quarantine period of thirty days.