jargon.artrocity.com
New Hacker's Dictionary the Jargon File v 4.4.6
[From the American political term ‘logrolling’, for supporting another's pet bill in the legislature in exchange for reciprocal support,] When you hotlink to other bloggers' blogs (and-or other bloggers' specific blog entries) in your blog, you are blogrolling. This is frequently reciprocal.