What have you done today? Perhaps checked out a few potential venues, liaised with important customers or filed an urgent report. Anything else you’d like to admit to? Like a little Facebook addiction or predilection for Twitter? Well, you wouldn’t be in the minority - as a whopping 50 per cent of British workers have confessed to spending time on social networking sites while in the office. According to MyJobGroup.co.uk one in 20 workers has admitted to spending more than an hour online networking and it could be British businesses that are taking the hit in their productivity levels. While social networks can be a crucial tool in sniffing out a great venue or maintaining professional networks it can also seriously hamper your productivity levels in the office. So perhaps it’s worth restricting your activity to lunchtimes only?