Julie R. from Etobicoke, Ont. Asks: “I liked your article on all the things you can do with BlackBerry Messenger, but I heard there was a way to back-up your contacts if you lose your phone. How do you do it?”

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Own a BlackBerry? Check out this free downloadable app that assigns a colour to contacts in your address book. When a call or text comes in, the smartphone’s LED light flashes a particular colour so you know who’s calling at a glance.

A dear friend of mine, Michal (pronounced mee-khal!), is about to go to Vietnam for a month-long backpacking excursion. While she wants to bring her BlackBerry to pick up email, she doesn’t want to incur the expensive roaming charges for data usage. Here’s the solution.

If you spend anytime online, then you’re likely aware every computer has its own unique “IP address,” which is also linked to your general geographical location. This is why you see “google.ca” (Canada) in your browser window even though you typed google.com (U.S.). Here, we discuss a trick for disguising your IP address.

Ever get the sense your “smiley face” emoticon was misinterpreted in an email or text message? Were you trying to use sarcasm, yet the recipient thought you were serious? Introducing the “SarcMark.”