The more I think about it, the clearer it is to me that Blogs and Wikis are really instances of the same meta-level idea. They should be unified into a single system. Blogs organize information temporally along a single thread. Wikis organize information spatially around a set of nodes representing ideas. Blogs have no concept of space. Wikis have no concept of time. What we really need is a single framework that enables information to be organized freely in space and time. You can create Nodes that represent ideas and link them to one another just like you do in a Wiki. You can post articles to any Node (or set of Nodes), just like you do in a Blog and they appear sequentially by time. When writing any article you can enter Wiki commands to quickly link to, or create new, Nodes. This is the best of both worlds. You can then filter it by Node name, Time, or both.