MrBingoBoingo writes with news that the U.S. Securities and Exchange Commission has settled federal civil charges with Erik Voorhees, a man who sold shares of two businesses in exchange for Bitcoins without registering them. Voorhees must make restitution for the $15,000 in profit he made, plus interest, and a $35,000 fine. Here's the SEC's filing (PDF). "The agreement reflects an expanded effort by U.S. regulators to cast a wider net over the burgeoning bitcoin economy. It comes as investor enthusiasm grows for direct offerings of shares by new bitcoin-focused ventures over bitcoin's global computer network. Maidsafe, a system for sharing computer memory, raised $7 million last month in such a deal."