As an experiment, I’ve recently started using Google Buzz as an outlet for various things I wanted to say or share, but which were too insubstantial to merit a mention on this blog. (In turn, one of the reasons of starting this blog was to share various bits of mathematics which were too insubstantial for a published paper.  Presumably the process becomes degenerate if iterated any further…)    I don’t know how frequently I will be updating, though.