Our interactive petrol prices map has recently been added in a blog post on the easyCar (car rental provider) website, where they also have a nice infographic showing prices around Europe.  http://www.easycar.com/blog/petrol-prices-map
We hope that easyCar users find the map useful - when hiring a car in an unfamiliar place we'd certainly recommend looking at our map of petrol stations to find the best local place to fill up, and find out what your fuel costs might be.
If you run a website and think your visitors might also be interested in seeing local petrol prices, then our map is completely free to use and takes just a line of html to embed.  Find out more here http://www.whatgas.com/data/syndication.html or contact us at webmaster@whatgas.com for more details.