Call me old-fashioned. At age 52, I still struggle with, and sometimes resist, 21st-century technology. When I first started getting invitations to connect on LinkedIn a few years ago, I winced. Do I have to do this, I wondered. But I begrudgingly spent a hasty five minutes clicking through one of those invitation e-mails and filling out some basic information about myself. Then I left the site.

From time to time after that I’d get invites and messages. Often I ignored them, or put them off for another day. Since Facebook seemed more fun, with its photos and games and fan pages, I spent much more time there, accumulating more than 200 “friends,” revising my bio several times, and posting my article links.

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