I'm sure everyone has seen the sites that will tell you how much your site is worth right? We all know those sites are for amusement purposes only right? Have you ever had someone offer to buy out your site, how did you come up with a number to tell them. Or have you ever looked to buy out someone site and how did you come up with that number? I use a few things when I'm going to place an offer on a site. traffic via Google analytic (never trust AWStats IMO) in my case of forums, the member activity referral traffic, you want to know where the traffic is coming from. (not generated by bots) monthly revenue and past months number of backlinks, what sites like alexa, compete & quantcast etc... show the amount of content that is indexed, strength of the pages I have a few more things I can list off but that should give this thread a good start. What do you use to determine the value of your site?