Every time you post a blog or tweet you may be subject to the laws of more than 200 jurisdictions throughout cyberspace. As more than a few bloggers or tweeters have discovered, you can be sued in your own country, or arrested at the airport heading off to a holiday in another country. Just for writing something that wouldn't raise an eyebrow at a bar. In this handy guide, media law expert Mark Pearson explains how you can get your message across online without landing yourself in legal trouble. In straightforward language, he explains what everyone writing online needs to know about reputation, privacy, secrets, bigotry, national security, copyright and false advertising. Whether you host a celebrity Facebook page, tweet about a hobby, or like to try your hand at citizen journalism, you need this guide to keep on the right side of cyberlaw.