I was wondering if I could get a few people from this community to help me create a DoFollow only search engine. At times I would only like to search through websites that have No-NoFollow attribute on links. This would be a great help to the link development community. It will make NoFollow links easier to find and our job quicker. You can volunteer to help at: http://www.google.com/coop/cse?cx=011225288180574084547:e8ngrvopzfq
Read my post here and I show you how to create a Google Custome Search Engine in step by step video tutorial. In fact, you can do this with a free software available in the same post.
I hate to burst your bubble but nofollow is only one of several ways to limit crawling. Your efforts would be in vain. It's a nice thought though and commendable.
That is why I am trying to get other people to help me. So that we can can start to only show those sites that pass link juice. There is nothing like checking everything by hand.