MIT is conducting a weblog survey. It takes only a few minutes to complete. It is targeted at the authors of weblogs and tries to understand how blogging has influenced their communication activities. From the survey site:

This is a general social survey of the greater weblog community being conducted at the Massachusetts Institute of Technology. Our goal is to help understand the way that weblogs are affecting the way we communicate with each other. Specifically we are interested in issues of demographics, communication behaviors, experience with weblogs and other technology, and the meaning of various types of social links within the blogosphere.

The survey takes about 15 minutes to complete, and we are asking anyone with a weblog to participate. The larger the sample of individuals we can get, the better our picture of the community will be.