The answer is not far from where you are right now. Observation. The easiest way to know what to write is by paying more attention to your surroundings and environment. A brief walk in the park, for example, could attract your attention to something interesting and thought-provoking.
It is quite astonishing, however, that many people have to drive through a particular street three or four times to notice that the road signs have been changed. While our attitude in regards to what is happening around us is important, observation should not be limited to our immediate environment alone. Paying attention to news and current events could also be useful (D’oh!).
Finally, it is imperative that you put aside every previous notion which suggests that “if it ain’t long, it ain’t good enough”. Blog posts do not have to be long. Actually, the shorter the length, the more likely it is that someone would be interested in reading it. A simple expression of your thoughts and opinion in a consistent and straight-to-the-point manner would not only make it easier for others to read your post, but also make editing your content a lot easier.

