Here is a incomplete list of my pages and profiles.

Current pages

https://a3nm.net/
This website, also hosting my blog.
https://inutile.club/
The club Inutile website, that I manage with Pablo Rauzy.
http://ulminfo.fr/~a3_nm/
My home page on ulminfo, which redirects here.
http://www.eleves.ens.fr/~amarilli/
My home page at ENS, which redirects here.
http://www.cof.ens.fr/arcanoid/
The club Arcanoïd website at ENS, now out of date with the real one.

Current profiles

I usually do not contribute significantly to websites unless they provide dumps of their content under a free license.

https://fr.wikipedia.org/wiki/Utilisateur:a3nm
My user page on the French Wikipedia.
https://en.wikipedia.org/wiki/User:a3nm
My user page on the English Wikipedia.
https://stackexchange.com/users/180745
My profile on StackExchange

Former activities

https://a3nm.net/arcanoid/
Club Arcanoïd de l'École normale supérieure (former interim president)
http://www.hackens.org/
Hackens (former member)
http://www.eleves.ens.fr/annuaire/
Student directory of the École normale supérieure (former team member)

Old pages

I used to be the maintainer of the following dead public websites. I list them here for exhaustivity; I do not endorse them anymore.

Gitorious
I used to have some projects on Gitorious, a hosting service which no longer works. These projects are now hosted on this website. Specifically, I used to own the follownig outdated projects (now hosted here): continuity crooks drime ens-ulm-1 frhyme haspirater irctk kesterel2lustre mybin myconfig nlsplit plint snipe ttyrex wikifirc
http://www.anama.free.fr/site/ (now redirecting here)
Used to be a mirror of this site, hosted elsewhere
http://www.anama.free.fr/dotclear/ (now redirecting to an archive here)
My old blog, inactive, little useful content.
a3nm.at
This domain used to be mine because it was cheap to buy, but I switched because it was expensive to renew.
http://www.inutile.ens.fr/
The old club Inutile website, now defunct.

Private websites

I used to be the maintainer of several private websites. Their addresses are not public information. Users of these websites can contact me for any inquiry.