Wiki helped define the category of social software. - Ward Cunningham

Computers are famous for difficulties. A difficulty is just a blockage from progress. You have to try a lot of things. When you finally find what works, it doesn't tell you a thing. It won't be the same tomorrow. Getting the computer to work is so often dealing with difficulties.

The idea of where does an idea come from and who should get credit for it is pretty soft. But I think people are pretty good at dealing with that softness and recognizing contribution when they know the people involved. With collective ownership, we create a social situation where you can get to know a person by how they spin their intellect into source code statements.

My specific purpose for the first wiki was to create an environment where we might link together each other's experience to discover the pattern language of programming. I had previously worked with a HyperCard stack that was set up to achieve the same kind of goal. I knew people liked to read and author in that HyperCard stack, but it was single user.