Someone had to do it: a Map-Reduce system build around the browser. Just point your browser to a URL and you are instantly helping someone to solve large problems by taking part in the process and running a number of jobs. If you think about this, it can even be used to replace advertisements. Instead of looking at flashy ads, a site can load a few tasks in the background (a frame would be best) and use some of your CPU power That would probably even be cheaper for the visitor than running the CPU power drain called “Abobe Flash” to show the usual “OMG you just won an iPod!!!” ads.