It's a lot of fun working with other people on interesting problems, and it's an excellent way of doing better research than you can do on your own. Over time I have written research papers with a lot of friends, starting with my PhD supervisor Tony Cohn. I want to pay tribute to them all here, as well as providing links for you to find the output of our joint work, and perhaps people who have followed it up.
In case you were wondering, the idea for this page was ruthlessly stolen from Toby's similar page.