I like to collect swing videos from the net, and obviously, Tiger's swing is a favourite subject for study.
To kick things off, here are two swings I put together from the youtube videos, a year 2000 swing and a 2008 swing. I've put them side by side for ease of comparison.
From this we can see two distinct styles, especially in the setup and how he moves through impact.
Would be interesting to hear what you guys make of it.
(credit: the original sources are from the San Francisco Golf Performance Center)