Having those whose profiles and photos you were looking at know about your looking is an invasion of your privacy, in a sense.

FORBES: Interesting Privacy Recommendation for Google+: Let People See Their Stalkers

Among them: it is inconvenient, undignified and an invasion of your privacy to be forced to remove your shoes, jackets and belts, take off your belt and take your computer from its case.

FORBES: Remember 9/11? TSA Finally Takes Off the Gloves, Reminds Critics of Reality.

You can choose what services to use with Google Now, so if the idea of Google parsing your e-mails sounds like an invasion of privacy, you can limit it to just Web history and location information.

CNN: Google's predictive search comes to iPhone, iPad

The problem with cases like this is that the invasion of privacy is unavoidably increased by taking your case into the federal court system.

FORBES: Woman sues ex-boyfriend for sending sex photos to her family and co-workers