What’s going on:

Obama taps Lew for Treasury: President Obama has nominated White House Chief of Staff Jack Lew to take the top spot at the Treasury, taking over for departing Secretary Timothy Geithner.

SEC enforcement chief steps down: Robert S. Khuzami, head of the Securities and Exchange Commission’s enforcement division is leaving the agency after four years battling wrongdoings on Wall Street.

Sports retailers hoping hockey brings back customers: Small sports stores, some of whom say sales decline this holiday season, are hoping a tentative deal to end the NHL lockout will bring back hockey fans.

Keep an eye on:

Cloud computing presents hurdles for small firms: Many small businesses have benefitted from a transition to cloud computing programs, but there have been plenty of setbacks, too.

Helpful advice on:

How to succeed behind the scenes in business (OSB)

How to save on office space for your business (Forbes)

How to develop a more effective brand strategy(YFS)

How to improve your mobile marketing (Hispanic Business)