pagerank
BBC does not Share Page Rank Anymore
BBC is no longer sharing it’s page rank because any external links are blocked.
For instance instead of linking to www.ecommy.com they are applying this crap:
http://www.bbc.co.uk/go/redirect.shtml?http://www.ecommy.com/
Read the full article here
Update: BBC wanted to measure how much traffic they were sending to other sites so that they could figure out how to send more.