I’ve come across a presentation put together by Flippa with the last years (2012) website sales data. Even with the current year ending it’s very valuable information on how websites make money. Some of the most important takeaways from the presentation are the following.

The average site site earns $133/mo with a bit over of 2,000 monthly uniques, that is $0.04 per unique. The average sale was $493 at 8x monthly income multiple. This greatly varies based on the type of a website, but it gives us a pretty good rough baseline on what to expect any particular site to earn. And more importantly to check against your own portfolio of websites to see how they fair against this baseline and if there’s a possibility to improve. Because, hey, if your sites makes $0.01 per unique which is 4 times less than the average, maybe there’s unrealized potential to monetize better.