Here’s what you need to know to get the cell phone and service plan that are right for you.

If you’re the family tech-support person, you’ll love the speed and simplicity afforded by free screen-sharing service Join.me.

I know you write the Mac 911 column, but I have a question about my new Kindle Fire (which I use with my Mac).

The iPad, unlike the Mac, is designed as a single-user device. You don’t have the option to create multiple accounts, nor can you create more than a single work environment.

While it’s easier to manage a single Mac, it’s still possible to have control over multiple Macs within your home. Not only can you remotely configure parental controls on another computer, you can also monitor what your kids do with their Macs, limit the hours they have Internet access, and share media between the computers within your home.

Even a seemingly innocent video can be rife with profanity-laden and/or hate-filled comments.

iTunes Match is new (it arrived Monday) and exciting (all your music everywhere! your old CD rips upgraded to iTunes Plus quality!), but it’s also confusing.

You’d think Windows would refrain from this kind of behavior, but, no, you have to tweak its automatic-update settings. Here’s how.

Still vexed by errors every time you click an e-mail link? This solution may do the trick. If not, let me know!

Note that web pages don’t always appear perfectly rendered. You’re likely to see a blank page or two and some of the page’s images and links may be rearranged. And, of course, since it’s a PDF, all links are now dead.