Help, Mama! Teach me to use the Internet!

You may not have noticed, but I am old. I didn't grow up with the computer. I actually grew up with a manuel typewriter, and that was very high class. Most of the people I grew up with used a fountain pen; I mean the kind with liquid ink. I can type a letter and even read email and do a simple search. It's fun. But there are depths to internet activity that I haven't plumbed yet, maybe I never will. When I try to read about what it means and how to do it, I find I am in the deep end of Google. I can't even figure out how to get my blog read by anyone.