Is the online magazine Salon on its last legs? This week its stock was demoted toWall Street’s Little League. “The San Francisco company has said it could run out of money by Dec. 1, barring an emergency infusion of cash.” In the past two years, Salon has slashed staff and scaled back. “In all, Salon had revenue of $1 million in the last quarter. That is tiny by business standards, the equivalent of sales at two neighborhood gas stations.”