Podcasting precursors: Hay baling, chopping onions and waiting tables
Journalist Stephen J. Dubner, co-author of the books Freakanomics and SuperFreakonomics, speaks during the SkyBridge Alternatives (SALT) Conference in Las Vegas, Nevada May 11, 2011. REUTERS/Steve Marcus It might not make a lot of sense to our grandparents, bu... More »
