If you are interested in contributing a post to the information theory b-log, please contact Sergio Verdú. He can provide you with an account to log in and create posts. Original material, as well as pointers to the web, are welcome.
Your post should be in a format amenable to publishing on WordPress. In order to facilitate this, please see the WordPress guide on including LaTeX here. Additionally, you may find LaTeX2WP helpful. LaTeX2WP is a simple program created by Luca Trevisan which converts a LaTeX file into HTML which WordPress will support. Unfortunately, it doesn’t support all TeX functionalities (e.g., the align environment), and therefore has a bit of a learning curve. See the documentation included with LaTeX2WP for more details.