PopulationPyramid.net was started in 2011 as a little side project. Since then, it has welcomed millions of visitors and is now part of Btlas, a new online Atlas, my new project.
To keep my efforts sustainable, there are some ads on the site. This allows to fund the server costs and my working time. I am not particulary fond of ads, so if you have better ideas about the funding of this project, feel free to contact me at [email protected]
Feel also free to email me about anything that comes to your mind regarding the site, especially if you spot errors.