Advice on how to optimize your site for search engines

Technorati's David Sifry responds to fears about blog spam, saying that smart algorithms and teamwork with other players can keep it from overwhelming the blog world.
Stephen Baker

Another useful post from Problogger--posting tomorrow in Australia.

One section shows how Google is responding to the challenges I outlined in my post about spam this morning:

A recent patent by Google indicates that it now looks at the length of your domain’s registration in ranking it. It does this because many spam sites have short registrations and a longer one indicates that you’re building a site with substance and are in it for the long haul.

Also worth noting: Technorati CEO Dave Sifry says in a response to my post that I'm overstating the threat coming from spam.

Smart algorithms and working closely with hosting providers and blog software vendors can help immensely.
He provides more details in the comment. I hope he's right.
Before it's here, it's on the Bloomberg Terminal.