Here is a list of the websites of some friends and collaborators:

• Abhinandan

• Piotr Achinger

• Alexander Bertoloni Meli

• Kęstutis Česnavičius

• Patrick Daniels

• Peter Dillery

• Elden Elmanto

• Haoyang Guo

• David Hansen

• Pol van Hoften

• Naoki Imai

• Hiroki Kato

• Wansu Kim

• Marcin Lara

• Jonathan Leake

• Shizhang Li

• Masao Oi

• Arghya Sadhukhan

• Alex Sherman

• Koji Shimizu

• Alexander Stokes

• Finn Wiersig

• Bogdan Zavyalov