Zemanta is a great application of the "semantic web." I truly enjoyed getting to meet the developers at SemTech. I don't use it alot, perhaps in part because I've fallen into FaceBook lately, but also because I really fell in love with Chrome, but LiveJornal, Chrome, and Zemanta were not playing nicely together until now.
In any event, perhaps you'll see some more substantive blog posting from me now.