What do you want to do when you've finished?
generic labetalol At stake is the trust of massive online audiences that attract digital advertising. As companies collect personal data and learn more about each user's interests and habits, advertising becomes easier to sell. The marketing campaigns are particularly important to Google, Yahoo and Facebook, all of which make most of their money from ads. And although Microsoft and Apple make billions from the sale of software and devices, the two companies are also hitching their fortunes to Internet services.