March Madness causes, well, madness for small businesses – especially those in the US. As one of the most popular annual sporting events in the US, the college basketball tournament is attracting 57 million viewers back in 2012, and we can expect similar figure this year. It’s all so exciting – but the problem is, it causes major disruption in business productivity, which eventually will affect your bottom line. So, how your small biz can survive through the 4-week tournament? College basketball is hot in the US – it’s the third most popular sporting event in the US – right after the Superbowl (American football) and NBA Finals (basketball.)…