some links that may be of interest to you CL.

Not sure whether all of them will work on the mainland.

http://www.pbs.org/wgbh/pages/frontline/tankman/view/

The full pbs program and other information about it.Very informative imho.

Then there is the ever useful wikipedia sticky, also probably blocked too:

http://en.wikipedia.org/wiki/Tank_Man

If i find more, I will contribute them.