This type of information gathering has generated a fair amount of controversy. Some say Amazon gathers too much information for comfort, and the Electronic Privacy Information Center reports that in 2000, Amazon started sharing its customer data with its partners and subsidiaries. The concern has increased with the tracking of "gift-giving habits," because the gift-giving information Amazon collects could be about minors, which is against the law, and because the gift receivers don't even know that their name, age, gender, location and interests may be stored in Amazon's database of customer information.