So what? you ask. Aren't you learning something writer-ly? Oftentimes, yes. But I'm also spending my time reading about writing rather than actually writing. That is what we call a Detour on the Road to Publication.
So, little grasshopper, when writing time is precious, don't spend it all reading about how to become a great writer. Take time every day to write. And if you have time left over, then check out those newsletters, websites and magazines. And don't forget blogs. (Now there's something I totally cannot resist. Especially if it's mine!)