I received an expression of interest from contentholdings to purchase one of my sites.
They sent an email to see if I was interested. Part of the email is below in bold.
I am very interested in speaking with you. I am much more interested in your website than most of the competition I've seen so far. I have an almost unlimited budget and I'm sure I can make you an offer that will be hard to refuse...
Does anyone have any information on this organization?
http://www.dnforum.com/showthread.ph...stpost&t=92149 shows that a Mr Jonathan Yantis seems to be a driving force behind those emails. I advise you to ask your favourite search engine for results to 'contentholdings' as there are quite a few in order to get a feeling for the reliability of your offer.
Based on the dnforum.com URL I'd say that it sounds like a legitimate offer.
Before you sell a website to someone who send you a random offer, I'd recommend putting it up for sale on the open market and see what other offers you might get for it. Just to be sure you dont' under sell yourself.