More Alexa experiments

My current websites have all been experiments so far, just to find out about search engine optimisation, blogging and pinging, content etc.
Over the next week or so, I'm going to be restructuring my sites - moving different content to different domains etc.
So it's going to be interesting how that affects my Alexa rank. I suspect it might have a major effect on Google as well. One of my experimental content sites had quite a large number of pages indexed by Google. Then I changed the content entirely and Google's webmaster tools now report 67 pages unreachable because they no longer exist, but they are still in Google's index.
This is despite creating a new Google sitemap and submitting it to Google. After about a month, Google still hasn't caught up. I guess it doesn't deem the site "important" enough.

Another way of increasing the Google rank of a site is to set up incoming links. Well all of my sites (in the new form that they will be taking) are related to each other, so I can include valid links from each site to all the others.
Perhaps that will have a positive effect on the rank.

I'll report back when it happens.