Just six days after we introduced the MOSPAM proposition ("Will spam reach record levels before September 30, 2007?") on PPX, the stock paid out at POP$100 per share when spam as a percentage of all email hit an all-time high. According to global IT security firm SoftScan, a whopping 98 percent of email sent on September 16 was classified as junk. Traders foresaw the new high and the stock was trading at $69.75 per share when the European IT firm SoftScan released their official count on September 17, at 3pm EST. Clearly, few held out much hope for cleaner inboxes this month. —Abby Seiff
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.