Plura Processing tried it a while back with a Java applet. There was a big uproar when one of their affiliates sold visitor's compute time without disclosure.

Plura Processing tried it a while back with a Java applet. There was a big uproar when one of their affiliates sold visitor's compute time without disclosure. http://pluraprocessing.wordpress.com/2009/08/24/our-response-to-the-digsby-controversy-new-terms-of-use-affiliate-auditing/ http://pluraprocessing.wordpress.com/2009/08/24/our-response...