Tis the season to be jolly (or not) about Christmas-quarter results, as various big tech companies announced their Q4 financials. Google reported quarterly revenues of $16.86bn, a decent year-on-year rise, with $3.37bn in net income. The company’s handset division, Motorola, which is being sold to Lenovo, generated $1.24bn of revenues but posted a loss of $384m in the quarter. Meanwhile, Amazon reported quarterly revenues of $25.59bn and a net profit of $239m, missing analyst estimates and seeing 10% wiped off its share price as a result. The company said its sales were up 20% in 2013 as a whole, as it invested heavily in new products and back-end infrastructure.