As part of its bailout package, Greece is privatizing previously state-owned infrastructure and companies. Should you invest?

Chicago-area real estate may be warming up, but sales remain frozen in other parts of the country.

High-frequency trading has come under fire since the May, 2010 “flash crash” when the U.S. stock market sharply plummeted, then rebounded, in a matter of minutes. But one Chicago derivatives manager says the high-speed computer-driven trading should be allowed to run its course.

Chicago can now use Illinois residents’ state tax refunds to pay debts owed to the city. There are a variety of payment programs residents can enroll in to reduce the amount owed or spread payments over a longer time period.

Car companies at the Chicago Auto Show are targeting younger, aspirational buyers.

Chicago has a little something for everybody. Museums, restaurants, shopping and sports give many people reason to put Chicago on their “must see” list. But the Windy City comes at a hefty price for tourists, with high sales, hotel and other taxes.

Almost half of employers are visiting the social network sites of potential hires. What are your profiles saying about you?

Coupon website Groupon Inc. filed Thursday to go public, looking to raise up to $750 million. The two-and-a-half-year-old Chicago-based company turned down a $6 billion takeover offer from Google Inc. last year and instead sought to pursue a public offering. After the craze of LinkedIn’s IPO, Groupon’s IPO is deemed to be another sign for a tech bubble by many people.

Virgin has positioned itself more as the airline to beat than the underdog. It might only have one gate in Chicago (and has yet to turn a profit since its U.S. debut in 2007) but with entertainment systems in every seat, instant messenger that lets you chat with other seats and wireless internet available for purchase on every flight, Virgin is the airline for the next generation.

Boeing is considering changing the engine of its popular 737 jet to save on fuel. The company’s shares recently hit a 52-week high above $80.