Amid my ramblings about comics, role-playing games, and other nerdy subjects, a section on parenting might seem out of place. However, I spent several years as the resident “nerd dad” at BabyCenter.com, here I contributed a weekly blog about my experiences as a father. A reorganization of BabyCenter’s site caused many of my blog entries to disappear, but the magic of the Internet Archive means I can retrieve what might otherwise be lost.

• Conversations with My 18-Year-Old Self: If I could go back and talk to the younger me, this is some of what I would say.