Berendt, B.; Glance, N. & Hotho, A., ed. (2008), Wikis, Blogs, Bookmarking Tools - Mining the Web 2.0 Workshop , Workshop at 18th Europ. Conf. on Machine Learning (ECML'08) / 11th Europ. Conf. on Principles and Practice of Knowledge Discovery in Databases (PKDD'08) .