More than 600 million people use Facebook Messenger each month to send texts, photos and videos. In March 2015 at the company’s F8 developer conference, Zuckerberg announced that you’ll soon be chatting to your favourite brand via the platform as easily as you do your best mate.

Only 0.6% of online shopping is driven by social media, compared to e-mail, which drives 27%. Can Facebook’s Buy button, integrated into newsfeeds, encourage people to spend more when they're on social media? And are retailers really welcome on such a personal platform?

When Facebook was launched, it felt defiantly 'young' - a fun place for young Millennials to waste time together. But fast forward to today, and the average user age has skyrocketed. As their parents start logging on, teens are abandoning ship. Has Facebook lost its cool?

Facebook group Wavey Garms is a place for ‘cool’ people to sell their second-hand designer clothing – but not everyone gets accepted. With over 1,000 membership requests every week, what’s drawing the numbers?