how to sell a domain name?

[YEAH]

i have a few domains for sale but do not know how to sell them, ive tried sedo and no luck. I think they are good domains for the right business.

http://www.seodomain.co.uk
http://www.businesssecuritysystems.co.uk
http://www.cct-v.co.uk

Any answers would be great.

Thanks for your time chaps