[deisner]

Another great article on the topic, from American Scientist: "The Future of Time: UTC and the Leap Second", available either from the magazine (behind paywall): http://www.americanscientist.org/issues/feature/2011/4/the-f... or on arXiv.org: http://arxiv.org/ftp/arxiv/papers/1106/1106.3141.pdf .

[JadeNB]

I'm not sure about the etiquette of arXiv links, but I have always preferred being taken to the abstract, so that I can decide whether I want the paper: http://arxiv.org/abs/1106.3141. It's just a click from there to the PDF (or other formats, if there are any).