b.cognosco

To me this is a sign of maturity in both the medium and the process of weblogging. The graphics each of these (and I'm sure many other) bloggers uses are explanatory and demonstrative of a particular concept or point they are making. In the best cases, like those above, the graphs sum up an entire post in a succinct, visual manner.

Such graphs add immensely to the post, changing them from simple op-ed pieces to instructive, conceptual works that inspire thought, response, perhaps even action. It's a great change -- but one that not every weblogger can manage. First you must have a concept behind your text -- some well-reasoned thought upon which you're basing your post. Simple opinion won't do. Second, you must have some basic graphic skills. Simple representations are often the most difficult, and reducing things to the minimum needed to make a point (key to any good info graphic) is a skill in itself.

But if you've got those two things please put them to use on your weblog. It's a great way to stand out from the crowd. Design blogs like IDblog or Boxes and Arrows are great places to look for samples and techniques since, as you would expect, they use lots of graphics to show their web design concepts.