Big data is a big part of your daily life whether you like it or not — or even realize it.
When you visit the doctor, go to work or get directions on your mobile phone, there's a good chance there's software out there quietly collecting and analyzing that information. And depending on the situation, that could be a good or bad thing.
Here are 10 examples of how technology is trawling your life, combing your digital refuse for something valuable.
Special Report: Buried in Big Data