You can sometimes find me on Mathoverflow.
I'm also collecting links I find interesting though not directly related to my research. You can find them all on my Shaarli, among which there are:
- Serious maths stuffs, including papers, surveys, blog entries and so on, which I've read mostly for the sake of curiosity, hence usually accessible to non-specialists
- Less serious stuffs, including some of my favourites xkcd, a webcomics of which I'm a big fan.