A researcher who hacked into Facebook chief Mark Zuckerberg's profile to expose a security flaw won't be in the money. Facebook offers rewards for people who find security weaknesses, but not, apparently, if you target the big man himself... in which case you seem to be deemed a hacker who went too far.

Meanwhile, back at Armscor, Defence and Military Veterans Minister Nosiviwe Mapisa-Nqakula has gunned for a couple of the top people and has fired the chairman and his deputy. The dismissals at the state-owned arms procurement agency‚ which are effective immediately‚ follow delays in crucial decisions that have stalled a R9bn manufacturing production contract for a new infantry fighting vehicle by Denel Land Systems (DLS).

Looking for a job? Juliette Attwell, writing this week in the BizCareers column, discusses the social media landscape and how it can affect your career.

Are you in the estate agency business and if so, do you use online marketing tools to generate sales? Here we show you some simple and cost-effective ways to embrace the internet and get the most out of it for your business.

And to end... Don't forget to vote in the Times' Creative Press Ad Challenge and stand a chance to win yourself a Samsung tablet.

Rod Baker, Content Director

Comment online in our ed's column archive. Go mobile with apps and m.bizcommunity.com. Engage with us on Twitter, Facebook, LinkedIn and Google+. Subscribe to YouTube and via RSS. Send all your industry-specific news and event invitations to propertynews@bizcommunity.com, exclusive opinion pieces to contributors-property@bizcommunity.com and international news to internationalnews@bizcommunity.com. Read "How to contribute to Biz, from op-ed pieces to news".