Whenever we surf the net, we use a browser such as Internet Explorer, Firefox or Chrome. Most browsers (depending on the settings) capture our surfing habits and online behaviour, and then transfer the meta data to advertising and data aggregating companies. They will in turn, serve you with ads which are in tune with your browsing habits. This is an indirect invasion of our privacy, without our knowledge. There are several socially responsible web advertising companies, who offer you a way to opt out of this hidden tracking. Just proceed to http://www.aboutads.info/choices and your browser will be automatically analysed for hidden advertising tracking. You can then choose to opt out of these companies, separately or all at once. They will then stop pushing your data out without your knowledge. This is a great tool to protect your privacy and everyone must use it once in a month to update their opt-outs.