Two major sites have announced important changes to the way they do things which are a good reminder for us all to be aware of how our data is being used. 

Google is making some changes to the legal documents we sign up to when using any of their services. From 1 March they are replacing the 70 different agreements with one single shorter version. This aims to make it easier for users to understand and means Google can now combine together the information you provide from using any of their services. 

Meanwhile, Facebook is planning to roll-out its new “Timeline” functionality to all users. Previously you could voluntarily opt-in the new set-up, which offers greater visual impact for profiles, and the ability to share items from previous years.

It can be easy to post details about yourself online, almost without thinking about it, but these two announcements highlight the need to understand what happens to that data and check what the site you’re using plans to do with it. You might also want to consider the following steps to avoid any issues:-

• Don't post anything you don't want others to know. Even if you make something private, there is always a chance the settings could change and it could become public in future.
• Review the privacy settings of the site to make sure they are at the right level to protect your information.
• Check the privacy settings on a regular basis to ensure that they still are at the required level. Sites may change some options without telling users, which can catch you out.
• Choose a strong password for your account to prevent someone else from accessing it.
• Always log out of your account when you have finished using a site, especially if you are using a public computer or one you share with other people.

Our guides have lots more advice on protecting your personal data, using social networking sites, and tips for social networking safety.