I want to sell 23 AdSense Sites, they make about £100/mo ($160 USD) they used to make a lot more in a previous AdSense Account that belonged to a friend about £400-£600 a month but he decided to try steal my money so I had to move the accounts onto another AdSense Account of another friend after a few months, I had already lost intrest hence the reason they lost rank and income.

Unfortunatly due to tender love and care these websites have dropped in Google Rank and thus lost income, I no longer have time to manage them.

All of these sites have many pages of unique content and are all HTML sites so they can easily be transfered.
What would be the best place to sell these?

Try Flippa. To get better bids, write an attractive sales copy and submit all the proof of your earnings and traffic (Google analytics).

I guess flippa.com is the best alternative for you. But hey, what do I know?

Yeah Flippa without a doubt.

Flippa like everyone else said. But I'm sure now that you've mentioned it you have quite a few members pm'ing you for info and prices.

Flippa - Without a doubt but if they ain't got any PR don't expect too much.

how much do you want for them? PM me. thanks

Try adding more content and backlinks to your site in this way you will earn more money with site , try at least that one site should make 1$ a day.

send me a pm i am instrested

I would try to boost sites

Please send me PM...

Im interested to your sites..

I may be interested in buying them too. Please PM me the URLs and details for each one.

yeah nice to try flippa