Facebook

Think your programming skills are world class? Facebook wants you to prove it at its second annual Hacker Cup challenge.

"Hacking is core to how we build at Facebook," the company said in a blog post announcing this year's competition. "Whether we're building a prototype for a major product like Timeline at a Hackathon, creating a smarter search algorithm, or tearing down walls at our new headquarters, we're always hacking to find better ways to solve problems."

A new feature, called suggested events, began rolling out to users this afternoon. It provides users with a list of events they may want to attend, even if they were not explicitly invited.

You know those deadbeat friends of yours on Facebook? They could end up killing your credit score and costing you a loan. At the very least, your no-account pals could bump up your interest rate.

A chilling story in the New York Observer’ BetaBeat blog this week details the efforts of several online banks that plan to analyze your social media profiles to determine how big a credit risk you are. It’s yet more evidence that, unlike Las Vegas, what happens on Facebook doesn’t stay on Facebook – and could come back to bite you in unexpected and unpleasant ways.