Instagram, a company that was acquired by Facebook earlier this year is giving itself the right to sell users' photographs to advertisers without their consent.

Instagram is making out that the change in policy is to enable it to "fight spam more effectively, detect system and reliability problems more quickly, and build better features for everyone by understanding how Instagram is used" but people aren't being fooled by it. One market analyst said "Every time Facebook has altered their privacy policy it has led to a backlash and they've been forced to retreat. They tamper with people's privacy at a cost. People are very upset."

Personal privacy on the internet is an increasingly problematic issue - I recently had an experience where one of those business networks accessed my address book and sent emails to everyone in it without my knowledge.