Develop a small site and put some affiliate links on it using CJ.com etc. provided you have a little free time and knowledge of how to make simple HTML pages.
My earnings from such small sites (no more than 8 pages) beat the earning from Sedo by a ratio of 10:1. In other words your mini site will earn $10 where domain parking will earn only $1 or less.
If your domain has type-in traffic and you are able to find merchant matching that traffic then you will do just fine. Finding the right merchant is the key here.