Take a look at this service:
How it works?
Websiteoutlook contains a collection of actual number of pageview from other websites. The visitor data is combined with information about number of links that point towards the site, country, Alexa ranking and other data that is available on-line. All this information has been used to make a formula that uses the information that is available on-line to estimate the number of pageviews, its worth and possible daily incom that the site has.
How accurate is WebsiteOutlook?
It is not an exact science, but it does give you a very good picture of how many pageview, daily ads revenue a website has. It can be used for numerous purposes especially when doing research. An Advertisers can get an estimate of how many pageview a site has before buying adverts. If you want to buy a website or domain Websiteoutlook can give you a pretty good idea about the number of pageview and website worth the site has before contacting the owner. Websiteoutlook is good for any initial research or just because you're curious.