ciml - 6:05 pm on Aug 31, 2002 (gmt 0)

The main reason I'm talking off-page factors is that muesli covered the on-page factors so well.

As for scale/technology/finance reasons, I think that we can be fairly sure that "Title of the ODP category the page is in" would have minimal implications while "Full Contextual PageRank" could not be done on a monthly cycle with current technology.

I don't know how long it takes Google to iterate PageRank, but I'd guess not too long (since they spend most of the cycle spidering and the indices must take a lot of crunching). But how many potential search phrases are there? It's currently unthinkable to iterate PageRank for each word combination or even each word, IMO.

Which is less expensive to calculate, Topic Sensitive PageRank or Hilltop? I'm sure that Google will have investigated both.