Apple has again riled its biggest fans, this time by unveiling iPhone security updates that render devices nearly useless if their owners have tampered with them in ways Apple disapproves of.

Now that Facebook has expanded beyond its college audience roots, the site is about to make a big push to capture a business audience as well.

The disruption to the music industry that started with the original Napster continued this week, as Radiohead announced it would make its new album available online at whatever price consumers wished to pay.