I've been happily reading NLP (http://nlpers.blogspot.com/) and Machine Learning (http://hunch.net/, http://pleasescoopme.com/) blogs for the past few years. It's been a great way to see what other researchers are thinking about. When reading conference papers or journal articles, the ideas are (more or less) completely formed. I was initially skeptical, but research blog posts give an added and (more importantly) faster layer of insight and sharing of information.
So here's my drop in the ocean.
I expect the broad theme to be Spoken Language Processing research. But it's impossible to discuss about this without drawing heavily from Natural Language Processing, Machine Learning and Signal Processing. So I expect a fair amount of that too.