I read that Sun have licensed their large Computer Grid to anyone that wants to use it; Jonathan Schwartz reported to have said "Why build your own grid when you can use ours for a buck an hour?". I thought that to be rather cheap ... Sun can only make $24 per day from their Grid.  Thats not going to pay many salaries.

However, I read on and discovered there was small print. It is not an hour of grid time, but the cumlative time of all the processors running your problem or algorithm.  So, a problem that only took 3 seconds to complete, actually used up in total 12hrs of processing time and therefore cost $12.  I suspect somebody somewhere is going to get a shock when they receive their Sun invoice!

http://news.bbc.co.uk/1/hi/technology/4229021.stm