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The nofollows are automatically created by mediawiki. I'll try to find a solution for removing them i guess. Thank you for your input.

Google indexed around 20k useless URL's due to mediawiki's insane amounts of URL's that is generated by not using "Short URL's". It was resolved when we moved the wiki to another location, added the short URL's. We have just redirected everything. (301).

Thanks for the good advice. Money is not really the issue, just not a fan of all the directories online, probably somewhat affected by all the directory-services calling me trying to sell me listings for insane amounts of money. (Local services here in Norway.) Good tips on using opensiteexplorer. Will definately take a look there.

Thank you Joseph. The site is faster than 77% of the sites online according to google. Could probably be tuned to be a bit faster i guess. I'm going to try to tune the server a bit to make it faster, might also try to disable https on most of the site (except the billing-system) for a while to see if it has any impact on the speed according to google.