Dr. No's search engine, perhaps, but such ideas go back (at least) to the 1930s - One thinking about such things was Vannevar Bush... http://www.theatlantic.com/magazine/archive/1945/07/as-we-may-think/303881/ --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .