Time it takes: Two to three hours
Today 89% of firms use social media to find candidates, according to Jobvite.
Not seeking work? "The best time to create a digital footprint is before you're looking," says Miriam Salpeter, author of "Social Networking for Career Success." That way your next move can find you.
How to do it: If you're not yet on LinkedIn, the site most companies use to recruit, start by uploading your résumé. Include your entire job history, since profiles with multiple jobs are 12 times more likely to be viewed than those with one; add a photo, and your click-through rate increases by seven times.
Be sure to use keywords in your summary that are important in your industry (hint: check job ads to find them) so that you'll come up in searches.
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From the editors of Real-Simple and Money. Text by Stephanie AuWerter - Last updated November 30 2011: 6:39 PM ET