Keep to a regular update schedule. You could post many times a day, once a day, once a week, whatever. People will adjust. My favorite webcomic updates every Monday, Wednesday, and Friday, and so I make it a part of my routine to check it out on those days.
No, xkcd
The name of your blog is just as important as anything else if you're objective is to appeal to the masses!
I'm not sure xkcd was ever intended to "appeal to the masses." Sudo make me a sandwich is nonetheless a classic.