This is the Alexa graph showing the site's performance over the last six months (what?):
Compete discloses this information about the site:
Yahoo shows this number of links to this site, inclulding links to internal pages: All Results
Of those, this many are links to the home page: All Results
And this many are links to the internal pages:
This is the number of links from .edu and .gov sites: All Results
The Page Rank of the home page is: For PR 5 & 6 sites earning less than $100 the value is a multiple of earnings that is usually considerably higher than indicated here. It can exceed USD 90 for your site. The rules are a lot different for high PR sites as there is an element of SEO benefit that users believe they can drive to their other online properties via linking from a high PR site. This tool may not provide an accurate indicator of achievable price.
Other pages on the site with PR include this list:
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