I'm getting married next week in addition to having recently joined a startup. I need to generate some extra cash due to the switch so I'm selling off my baby, jqueryin.com, which I spent 3 years growing. It's a web development blog run solely by myself that generates ~4k monthly uniques (used to be 5-6k when I posted more frequently).
The site has a blog post detailing this in a bit more detail:
Bidding starts at $1.00. I'm setting it so low to try and generate a high bid count for popularity. Even if you aren't interested in the domain, simply bidding while it's still low will help me out tremendously.