Well blogger does not have support for latex and the windows live writer is being redeveloped. So, in the meanwhile, I have written a few posts on the pelican blog and thought, I might as well link to them here.

Why you should prefer to use the square root of Gini Index: This post examines the advantages of using the Gini Index as the criteria for building decision trees.
http://orastack.com/why-you-should-use-square-root-of-gini-index.html

Do tweets have predictive power. This post examines whether tweets have an effect on opening weekend revenue of box office movies.
http://orastack.com/scikit-learn_tweet_classifier.html