i tried few of such sites ... but the every site recommended by the above members showed diff values for one of my site (with good traffic and many pages). but amongst such sites i liked this one :- dnScoop.com
if it's true the owner of the site makes anywhere close to 250k a year, it would take more than a couple of mil for me to want to get rid of it. -dan
Raymond's tool is worthless. I've asked for values on some sites and it fails to take into account the branding and keyword values.