Blogging is so easy to do and so appealing, that nowadays even very young children are active on sites like Myspace. We believe that weblogs are the most promising technology for e-learning, and define a framework for turning a semantic webblog into an effective educational tool. This paper describes our approach to harnessing the power and allure of blogging to promote collaborative learning and to develop students? critical thinking and writing skills. The technology behind blogs facilitates evaluation of items and individuals, as well as a means of using this to automatically improve the weblog. Initial experiments with our e-learning blog indicate that blogs and the way we use them are a useful educational tool.