You can list them for sale anywhere. However, NO ONE will buy them. You don't have anything of value here.
I'd recommend Flippa. Like NetStar said, you're going to struggle to find a buyer. Get some more traffic and revenue, and then people will be more willing to pay a high price. The domains aren't particularly old, either, which makes them less valuable.
Your domains are useless, maybe you can sell them under the market price to minimize your loss. I recommend the DP Marketplace.
I like how you worded that "minimize your loss". It's a very polite way to say "maybe someone will pay $2 for it"
There are many marketplaces, just search for domain name market place on any search engines and you will get many results, the most active domain name forums are namepros and dnforum, also digitalpoint, marketplaces are flippa, sedo, bodis, etc.