Web Worker Daily gives 10 ways be productive with your blog. Well there are two which I like more than others:
8. Force yourself to do research. A lot of time I will procrastinate on research for as long as possible. But when it comes time to write a blog post about something, I am forced to do that research so that I can write about it in the post. That’s good incentive, and you can accomplish a lot more research if you post every day or at least a few times a week on your blog.
9. Become a life-long learner. Ever have something you want to learn about? Well, do a series of posts (or an entire blog) on that topic. Writing about it every day will force you to learn it well enough to explain — the best method of learning there is. In this way, you can teach yourself dozens of subjects about which you would otherwise be ignorant.
I try to follow by those suggestions when I post about something in my blogs. And it really help me find more information then I get from the original source.