When I’m on a site with something awesome that I want to share, I open up a new tweet window, type in what I want to say, copy and paste the URL, and tweet it1. I think that’s the most powerful way to share things. It’s human. It’s also not very difficult. Leaving fancy tweeting buttons off the page I feel encourages those human style tweets over those where tweets with just the title of the post and a link.
Great post by Chris Coyier on embedding sharing buttons on websites. Hit of the source and read the whole post.