Well, found this new SEO trimming website just now. A good start if you don’t have time or knowledge about SEO. Just to remind you, Content always comes first. Don’t waste too much time on the SEO, spend more time on writings.
Here’s the link: http://search.seoeng.com According to them, all outbound link must put into a sentence / paragraph (Wish I found kinda overdone), and must put rel="nofollow" which is kinda pointless to some extend. (If every websites also put nofollow then what is the PR for?
As long as you don’t cheat purposely, there’s no need to make it 100% perfect in the SEO trimming because you might found what you did today is no longer matter tomorrow.
Content is King!
(Just another thing, it is not free one.)