When I was talking with Myke on CMD+SPACE the other day, he mentioned his internal thought process on how he decides to support a site by becoming a member or not. After mentioning it I urged him to write it up, because his rationale is simply fantastic.
This is that write, and I really don’t want to spoil the criteria he uses so I do urge you to read it. What I really like about his logic is that it is all about the people behind things, and not the content itself — that sits well with me.