There's a private Craigslist inside Bloomberg terminals where Wall Streeters are selling everything from Ferraris to Italian castles

Paramount Thousands of people use a Bloomberg terminal every day to do their jobs. It's one of the most useful machines in the world, and the workhorse of the financial industry, with up-to-the-second data and news from around the world. The terminal, which costs more than $20,000 a year, has some extremely handy functions, such as stock quotes, financial analysis, and an instant messenger that some people could not do without. But there's another, lesser-known function — aptly named POSH — ...