Interesting people in dataviz

On this page you will find a list of interesting people or websites to follow, on the theme of dataviz (not necessarily with R). You can filter if you are looking for someone or something in particular.

Since I follow people's work primarily through Twitter, the links I give for "people" send to their Twitter. But if they have a personal website, it will be mentioned in their account description.

If you have ideas for people or sites to add, let me know. And if any information is wrong too!