You may think that internships are for kids, but they can be the perfect way to relaunch a career or reinvent one if you’re in your 30s, 40s, or older. In this week’s work segment, we get the scoop on adult internships from our work contributor, Beth Kobliner. We also chat with Kelly Barbieri, a 41-year-old who went from laid-off print journalist to managing editor of relocation.com, thanks to an internship she did this past fall with YourTango.com.