Privacy and social media have an uneasy relationship at the best of times. You want to share your life with your friends and family (and maybe brag a bit to complete strangers) but you don't want to overshare and find yourself vulnerable or embarrassed. You also don't want to find that your personal data is being abused or sold on without your knowledge. To help you out we've put together some tips for using Facebook and Twitter as well as some helpful advice when you're signing up to or using other social media.