With over 61% of people reading online reviews before making a purchase decision, it’s even more important than ever to separate the good ones from the bad. But with peer reviews and professional write-ups often having contrasting opinions, who should we trust – and why?

With the number of people using tablets forecast to hit one billion in 2015, the in-flight experience is changing. And as more airlines allow flyers to stream videos from their own devices, new advertising opportunities abound, questioning the relevance of screens in the backs of plane seats.

In 2013, over 3 billion passengers took to the skies. As airlines aim to make flying as simple as taking the train, could everything people would normally associate with air travel – endless queues, bad food, cramped, uncomfortable seats – be about to change for the better?

To find out how their passengers feel in-flight, British Airways is experimenting with an unsual idea, a "Happiness Blanket". In the same way a mood ring can indicate your mood, the blanket monitors brain waves using a headband and changes colours to reveal a passenger's mood.