I have done a little bit of Machine Learning back in college, I paralellized a transductive SVM to get improvement over the a really slow algorithm so the topic still interest me. I just discovered a cool article by Google Research about empiric lesson learned while developing a real world machine learning algorithms.
Now while reading my feed I discovered this article that introduces a cool machine learning algorith for ranking and matching players for the Xbox live. It also have a good introduction to statistical machine learning. Totally recommended.
Happy reading :-) .