Seems everyone's looking for some sort of performance advantage in these harrowing days of economic meltdown and early season races. The most emailed story this week on the New York Times website is Gina Kolata's piece on the athletic benefits of caffeine (story). Of course, caffeine's ability to boost performance isn't news to runners, and by now most of us have chosen one camp or the other: Double Shot or Double Not. Still, the piece is an interesting read and like most Times articles provides a lot of info delivered from some interesting angles.