By:

In truth, like many fiftysomethings, it took me awhile to warm up to
Twitter. When I first heard about the
online and mobile social
networking service, I thought it sounded downright silly. But now that
I’ve been using Twitter for nearly two years, I’m singing (tweeting?) a
different tune.
Twitter, I’ve learned, provides a powerful, quick way to get the latest
career information: job posting alerts, recommendations of helpful
books, links to industry conferences, the skinny on potential employers
and much more. It also lets you build relationships with industry
experts, recruiters and others who could boost your career.