7 rules of brainstorming

Like Wal, I've been in many brainstorming sessions.

And like Wal, I've never really been in any that ever seemed particularly effective.

I've read up on the subject before and I seem to remember a few tips on how long you should do it and how many people to involve - and yes, I do think it's important you set a few parameters - or rules.

Here are 7 rules of brainstorming from IDEO, the design and innovation consultants, courtesy of Wal at Hyper Island.