rainborick - 3:00 pm on Feb 13, 2008 (gmt 0)

I tried this recently on a limited basis by adding nofollows to some of the links on a site's main page that point to pages whose rankings don't matter like "Contact Us", "Ordering Information" and such. I've seen enough of an uptick in the traffic to that site's internal pages (which had been pretty anemic) to believe it helped and to start making similar changes to other sites I operate.