Collaboration can go as far as you help take it. If you wanted to talk about a subject not normally talked about, you can start it. If you wanted to talk about something like news you heard recently on tv about the middle east, you can blog it. People have their own unique opinions and they use that to broaden that subject to bring new outlooks onto it. It can also help other people see the topic in a new point of view also. You can contribute to someone else’s collaboration and contribute to what other people have to say about it.