You know, when I was a lad, we were always accused of spending too much time “in front of the computer playing games”. Then came email and its capacity to swallow hours of your day. Then, when broadband rolled around, it was just ‘mindless surfing’ that killed your online time. But now, recent research by Nielsen has proved what only the people still stuck on the island in Lost don’t know: these days, when people waste their time on the web, it’s on social media. The stats? Apparently, we spend about 23% of our time online twittering, poking and liking versus about 8% on email. One imagines that the rest…