I experimented with using Daring Fireball’s “Linked List” style where the blog post link (in RSS) points not to the blog but to the site being talked about. In the end, I decided that this is annoying. If I’m posting something to my blog, I will generally have at least some comment about it. Rather than just passing the reader along to the original site without my comment, I’d rather have them come to my site and see the comment and then head over to the site I’m linking to.
This is particularly true since my blog posts automatically appear on Twitter and they would have been linking from Twitter to the original site and not to my site. It’s not a matter of wanting traffic to my site. It’s a matter of not wanting to link to the sites without comment. (I use delicious for that sometimes…)