What if you’re nearing retirement age and can’t stand the thought of leaving the workforce? What are your choices?

Kerry Hannon, author of “Great Jobs for Everyone 50+: Finding Work that Keeps You Happy and Healthy . . . and Pays the Bills,” is on a mission to help people find fulfilling retirement employment. I invited Hannon, who writes the “Great Jobs for Retirees” column for AARP, to join me for an online discussion. I wasn’t surprised that the hourlong chat didn’t give her nearly enough time to answer all the questions that poured in. So she offered to answer some offline.