Visibility on social media is critical for any company that wants to recruit millennials – a generation that will comprise 75 percent of the U.S. work force by 2025, says Mary Jawgiel, program director of Industrial Careers Pathway, in Making the Case for Social Media in B2B.

If you aren't on social media, millennials don't even know you exist, says Jawgiel. “And even if they see you – you go to their school and talk to them – but you don’t have a page on Facebook, they think, ‘Oh, I don’t know about them.’”

A recent Nielsen survey reported that 70 percent of millennials use social networking and male millennials are more likely to learn about companies through social media than Gen Xers or baby boomers.

Jawgiel suggests using social media to "show who you are and to develop a personality.” It is also important to mention any charitable work since it is an important factor to millennials.

Read more about the benefits of using social media, in Making the Case for Social Media in B2B.