SIMD instruction reference/tutorials

I googled it and so far the only good link I found was this:

http://courses.ece.uiuc.edu/ece390/b...-ref-simd.html

Is there any other good tutorials/references on using SIMD's? Thanks in advance. :)

I found some more :D

http://www.intel.com/design/pentium4.../index_new.htm
http://arstechnica.com/articles/paedia/cpu/simd.ars