Dining rooms are out; libraries, dens and "living pavilions" are in, according to a feature in the Wall Street Journal's "Mansion" section. As families have transitioned from eating around the dining room table to less formal settings like the kitchen island or, in some cases, their couch, many homeowners are finding new, creative uses for their underutilized dining areas. Check out the full story to learn more about this trend (and maybe even get some ideas for your own home).