I seem to be having luck finding these book sites these days (thank you CBC).
This nifty little site is entitled Meet the Author. It contains 90 second video clips of authors old and new introducing their books. There does not seem to be many Science Fiction or Fantasy authors yet, but there are a few YA authors listed. The clips are not made by marketing departments or publishers.
So far, it is limited to U.S. and British authors, but it is only a matter of time before it comes to Canada. Then, we'll all have lots of Margaret Atwood clips to watch.