Are you in the habit of passing along chain letters, email jokes and online petitions to coworkers and friends while logged on to your office computer? You may want to reconsider that behavior, warns an article from CareerBuilder.com about protecting your privacy on the job: "Although it may be tempting to forward the latest joke or urban legend to your colleagues, resist the urge. Someone in your organization usually the network administrator is watching all emails that come and go. Is this fair? According to experts, if your email system is owned by your employer, the company is allowed to review its contents." Big Brother is watching!

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