Blog readers are a fickle bunch. Once you've drawn an audience, they expect to find new content when they visit your blog. That doesn't mean you have to post every day, but you should establish a minimum blogging schedule and stick to it. Let readers know, preferably in a static text box at the top of your blog page, that you will update the blog daily, weekly, on Mondays and Fridays, or whatever. Then do it--even if some of your posts aren't particular profound or long. Readers will abandon your blog if they think you've abandoned them. If you need to deviate from your schedule (for example, you're going on vacation for two weeks or you'll be in the hospital or you have a family or job emergency), let readers know that you won't be posting at the regular time and give them an idea of when you'll be back.
