Kristin BurnhamPCWorld

Kristin Burnham covers consumer technology, social networking and enterprise collaboration for . Follow everything from on Twitter @CIOonline and on Facebook. Email Kristin at Read more about consumer in CIO's Consumer Drilldown.

Facebook Privacy: 10 Must-Know Security Settings

Facebook's seemingly endless tweaks to privacy and security settings leave many people wondering: How secure is my Facebook account? We've rounded up the 10 most important settings for you to check.

LinkedIn Revamps Security and Privacy Options: Your Guide

LinkedIn is rolling out an entirely redesigned privacy and security settings page aimed at helping users find important information quicker and navigate controls...

Facebook Privacy: 4 Valuable Yet Hard to Find Settings

According to a USA Today/Gallup Poll released this week, 70 percent of Facebook members are "somewhat" or "very concerned" about their privacy. Take into account...

LinkedIn: 10 Tips and Tricks

With more than 80 million users worldwide, LinkedIn has established itself as the premier social networking site for professionals. If you're job searching, looking to broaden your network or hunting for new partnerships, these 10 tips and tricks will propel you toward success.

Gmail Tips: 5 Great E-Mail Timesavers

If you're one of Gmail's 193 million users worldwide, you probably rely on the service--and its add-ons--every day. Here are more ways to get more out of Gmail.

LinkedIn: 5 Ways to Attract Attention to Your Profile

How to make your LinkedIn profile speak for you.

LinkedIn Quick Tip: How to Navigate the New Polls

LinkedIn Polls, a feature on the site that lets you pose or vote on a question and analyze results, received some major updates.

3 Ways to Polish Your LinkedIn Profile For the New Year

Eliminating overused buzzwords isn't the only way to spice up your LinkedIn profile, whether you're looking for work or just trying to expand your contacts.

Social Media Haters Rejoice: Holiday Gifts Just for You

Every time you hear 'tweet,' 'friend' or 'connect,' it makes you want to scream? Here's a collection of perfect gifts for those who share the same social sentiments as you.

Gmail Tips: How to Take Chat Off the Record; Archive E-Mails

Use Google Apps or Docs for work? Here's how to chat off the record and archive e-mails in Gmail.

Groupon 2.0: More Deals and a Personalized Feed

While rumors continue to swirl that Google may acquire Groupon, the pioneer in deal-a-day websites is unveiling a new interface.

Twitter Tips: Enabling Mobile Notifications; Vital Shortcuts

When you're on a business trip, running errands or on vacation, you probably don't have the same access to a computer as you do during the workday.

Facebook Messages: 3 Reasons to Say No

Facebook's Monday announcement of its "social inbox" plan drew a lot of criticism from skeptics. Here are three reasons why that skepticism is warranted for...

Google's 10 Best and Worst Innovations of 2010

Google rolled out a number of cool products this year, but not all of them can be home runs. Here's a look at the best and worst of Google this year (so far).

The Four Biggest Mistakes Businesses Make on Twitter

How to keep your business Twitter account from failing.