There are a lot of website value evaluators available as well, that allow you to fill in the values to ascertain a rough sale price
but I always get estimate results which differ largely from different website value evaluators. I think it is hard to make a fix figure.
I just read about this in a different thread and they have a website that does it for you. http://forums.digitalpoint.com/showthread.php?t=531986
fast growing estimation website developed by myself, yes I am the founder of freewebsitereport.org I should agree all other sites mentioned here are as good as mine. Few notable feature on my sites are, 1. Update your site value once in 3 days. 2. Historical price chart, you can see all your previous values (Unlimited). 3. User reviews for individual websites. 4. Adult and Malware warning. 5. A organic keyword research playground, on a separate site - organickeywords.org 6. A detailed backlink report site, you can see the actual links that are linked back to your website, you can also check the current backlink status (alive/dead) - websitebacklinks 7. Google Friend connect social login facility, you can use your Yahoo/Gmail/Twitter account to Login to our site and leave your reviews for websites. ... adding more features. sure feel free to suggest us more....