If there is valuable software, database or other asset that is not currently contributing to the income - or will influence the earnings trend upwards - this could increase the price the site reaches at auction. Similarly, if there is an asset that will cease to exist after sale or a license that will revert or end post-sale this could adversely affect the price. If you haven't provided any of those figures then there may not be relevant notes to put this valuation in better context.
The more hands free your community and the more self regulating, the better the price. Costs of license etc are expenses that affect the value of the lower priced communities. Buyers will also be looking to see if you've got a handle on post spam and have protected against duplicate content i.e. pages with the same content appearing on different URLs - a problem common to forums and blogs. If there is a lot of static content, the Content Site valuation may be more accurate.
Web businesses currently available for sale at various forums
