[Simon]

First let me say I'm not interested myself...however, based on the little you've said, it might be hard to get most people interested.

You've told us the sites are not that old, and with no mention of daily unique visitors or how much income they generate each month, the only one who can put any valuation on your sites would be you. You ended your OP by asking others to give you an idea of the possible value, but you haven't given anyone the information a buyer would need to even guess what they might be worth.

It's understandable that you might not want to post traffic an sales stats on an open forum, but in exchange you'll have to understand that without access to your most private data it will be up to you to say what you want for your sites, and then you'll need the data to back up your valuation when you're talking with a potential buyer.

Good luck with selling your sites.