Since late 2008 I've been having trouble with a pinched nerve in my back. Consequently, when I completely finished one big project in February 2010 and then finished the hardest part of the work on another big project a few weeks later, I decided to take time off from working at my computer. As a result, I haven't been blogging much in recent months. Fortunately, my back is getting better, and so I hope to return to more regular blogging later this year.