Share 'Linkies'

I'd like to start a weekly book meme and I'm thinking about including a linky thing at the end of each meme post so that particpants can add a link to their blog post. I've never done this sort of thing before and I'd like to know more about the options that are out there. I'm looking for either:   A wordpres plugin that would do something like this (I have a self-hosted wordpress blog). A third…