This post, by Jonathan Poritsky, is a really useful set of hints about how to build a linkblog — a la Daring Fireball and many others — using Octopress.

Regular posts feature unadorned headlines while link posts are denoted by an additional glyph at the end of the headline. […] The headlines of all link posts go to another site, both in your web browser and in your RSS application. They also feature a permalink at the bottom of the post so you can always find a way to get back to my site, which usually features commentary of some lasting value (I hope).