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Here's an good article on anchor text & over optimization.  ... exact match vs partial match. http://www.seomoz.org/blog/beyond-exact-match-anchor-text-to-next-generation-link-signals-whiteboard-friday I have a client that has been penalized for over optimization.  We've been focused on partial match links for a while.  We've even used a few links that were the actual url, and 'click here'.  Anything that makes your link profile look natural.

I would do it, but other might think its a bad idea