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.
If the bulk of the traffic or revenue is from an associated blog or forum that could skew the valuation. Other things being equal sites in some sectors - like the adult industry - sell for a lower multiple. A site that revolves a lot around the seller's personality is more difficult to sell and could see lower prices.
Other things being equal, a larger number of pageviews suggests to the buyer that the earnings will be steady. If, however, too much of traffic is being referred by just one or two sources that increases the risk for the buyer and often serves to reduce the value.
The larger your body of quality content the greater the number of "natural", organic links a buyer can expect in the future and that influences his perception of how the site is going to fare once he's taken it over. However, content that is duplicated elsewhere, that is lifted from "article directories" etc., tends to impress buyers less and such content pushes down the multiple they are willing to pay. Nature of subject matters too. Evergreen content on, say, astronomy, is likely to be more attractive than content that dates quickly - for example, reviews of the latest laptops.
Web businesses currently available for sale at various forums