As demand for millennial graduates increases in the next few years, companies must extend their reach to more candidates without necessarily visiting more campuses. That means figuring out creative virtual recruiting ploys like L'Oréal's games.

Some companies are expanding their talent searches by trolling through blogs and message boards on job-oriented and other Web sites for prime candidates. They might, for instance, read a posting about a negative experience that an intern or exemployee had while working for a competitor and reach out to the disgruntled prospect with an e-mail or text message.

FedEx Corp. recruiters read blogs where young people often express their personal passions. They're looking for a ...

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