Preston GrallaContributing editor, PCWorld Follow me on Google+

Preston Gralla is a contributing editor for Computerworld, a blogger for ITworld, and the author of more than 45 books, including NOOK Tablet: The Missing Manual (O'Reilly 2012) and How the Internet Works (Que, 2006).

Enhance Firefox 4 with ten free add-ons

The recently released Firefox 4 is a big improvement over previous versions of the popular Web browser, but you can still teach it plenty of tricks.

Greenpeace: Facebook, others have a hand in global warming

Greenpeace has charged that Facebook, Apple, Microsoft, Google and others are contributing to global warming by using coal to power data centers for their cloud-based services.

Google, Microsoft and Apple: Which one will thrive?

As Apple, Google, and Microsoft look to encroach on the turf of the others, which one is best positioned for the future -- and which is most likely to fall? Computerworld's Preston Galla offers his take.

Would two Microsofts be better off than one?

A decade after Judge Thomas Penfield Jackson handed down his eventually vacated order to slice up Microsoft, Preston Gralla wonders whether the giant company might have been better off split into two.