Christopher NullPCWorld

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Christopher Null is a veteran technology and business journalist. He contributes regularly to TechHive, PCWorld, and Wired, and operates the websites Drinkhacker and Film Racket. Disclosure: He also writes for Hewlett-Packad's marketing website TechBeacon.

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The top 5 reasons why Google Hangouts never works

The right browser, the right app, the right plug-in...or the wrong one...we'll help you sort out the worst hangups of Hangouts.

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Skype fails: 5 of the worst problems and how to fix them

Admit it: You've cursed at Skype. We all have. These tips will save your breath--and maybe save your meeting.


Guardzilla review: This dirt-cheap home-security camera has some growing to do

If you’re looking for basic protection for your small apartment or home, this wireless camera has only minor flaws.

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Free videoconferencing tools: 5 creative ways they can help you get things done

Skype, GoToMeeting, and their ilk need not sit idly between meetings. Use the services to collaborate, train employees and more.

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The top 14 hidden features in Windows, iOS, and Android

Betcha don’t know all these nifty tricks and time-saving tips to boost your productivity. Whichever OS you use, there's something here for you.

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ZoomPresence review: DIY telepresence system is a struggle to set up

Zoom's low-cost telepresence tool has some nice features, but lack of documentation makes installation a hassle, and you have to gather all the hardware yourself.

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Adobe revamps Connect's collaboration features

The latest release of Adobe's business videoconferencing tool includes simpler screen sharing, expanded whiteboard capabilities, and deeper social media integration.

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Dragon NaturallySpeaking 13 review: Better than ever at letting you speak freely

The gold standard for speech recognition software gets even better with added features and 15 percent more accuracy.

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You don’t know Docs from Drive: Google’s productivity apps, explained

Docs or Drive? Apps for Business or Drive for Work? Follow our guide to determine which Google service offers what, and which one is best for you.

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Perfect tablet typing: The best tips, apps and add-ons

How's that touchscreen keyboard working for you? These tools will help you become a fleeter-fingered typist.

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7 ways to use social media to get work done

Facebook, Twitter and other social tools don’t have to suck away your work day. Here are some strategies to use them productively.