TDavid makes some excellent additions to my earlier emailing etiquette post.
His suggestion to make sure the blogger you are emailing hasn’t already written about the same thing is spot on. If you haven’t read their blog, how can you expect them to read your blog?
He also makes a valid point that I assumed emailing is the way to go. Some folks prefer being contacted other ways- IM, Skype, a comment, etc.
Check out his other thoughts about making contact. Good stuff!