can weblogs accelerate expertise?

A brief dissertation: weblogs: Can they accelerate expertise. In short, yes:

Weblogs offer a significant potential benefit to learners, by accelerating the learning processes that contribute to expertise.

The technical and social nature of weblogs enables them to be used in a number of pedagogically useful ways. Perhaps most usefully, the simple act of posting to a weblog satisfies a number of educational criteria such as semantic analysis and metacognition. The technical infrastructure of weblogs assists knowledge gathering with the creation of taxonomies and the automatic display of domain knowledge from other websites.