I agree with David about the interesting ideas introduced in the paper. I liked the idea of text classification in a global context, which exploits the natural taxonomy of the web.

I felt that the ideas and concepts were clearly explained, but implementation details were neglected, and running time measurements or analysis was missing form the paper.

The writing style of the paper was clear, however in certain places the intoduction of new variables and notations was a bit confusing and hard to remember.

Overall, i found tha paper very interesting, but would like to see some performance results in terms of running time.