Risky Business Models: (1) Orlando-area cosmetic surgeon Jeffrey Hartog inaugurated Liquid Gold, a storehouse for patients' frozen liposuctioned fat, charging $900 to safekeep a coffee-cup-sized portion and $200 per year storage (in case the fat is needed later, as for smoothing facial wrinkles). A Massachusetts General Hospital physician shook his head, telling the Orlando Sentinel, "Frozen fat doesn't hold up as well as fresh fat." (2) German biochemist Peer Bork told the journal Nature in September he and his partners built the not-for-profit MyMicrobes.com social network so people with similar stomach bacteria can commiserate over diet and gastrointestinal woes. The $2,100 signup fee includes a full gut-bacteria sequencing.