For a little bit of context, leapsecond.com is the website of Tom Van Baak, one of the "Time Nuts", people striving (sometimes: obsessed with) to maintain precise clocks and oscillators, mostly for the fun of it.
Here's a recent talk of him, at the ARRL and TAPR Digital Communications Conference, 2013.
Thanks for posting those! I came across the leapsecond site years ago and enjoyed it but haven't been back in a while. If I wasn't already so over-hobbied I'd probably be a time nut. My father is a ham radio operator and always set the clocks in the house from the WWV broadcasts, thus establishing in me at a young age an appreciation of accurate clocks.
Here's a recent talk of him, at the ARRL and TAPR Digital Communications Conference, 2013.
https://www.youtube.com/watch?v=MT2reYXPvGg
Also interesting, the state of the art in amateur timekeeping (but already 2003):
http://leapsecond.com/ptti2003/index.htm
...and clock powers of ten.
http://leapsecond.com/ten/