I have a legal web site with very little content but that is focused on my local area. I've done some decent work backlinking it and it's at the top of the organic results for a bunch of local keywords (MyCity lawyer, MyCity attorney, etc). I've been writing a sales letter and was going to send it out to all the lawyers in my area in a few days. I want to lease it out, either getting several firms to pay each month to be listed on the main page, or to lease it out to one firm for more money. Tonight I got an email from a guy at a big personal injury and disability firm (more than a dozen offices in my state and commercials on TV all the time). The email said, "I don't know how much it would cost to add a link on your website. But I would like to." How much should I ask for? I've never done offline before and put up this site on spec, so I have no idea what to ask for.