filter: Alpha(Opacity=80, FinishOpacity=70, Style=2);
filter: blur(add=false, direction=135, strength=6);
filter: Glow(Color=#ff0000, Strength=8);
filter: DropShadow(Color=#0066cc, OffX=5, OffY=-3, Positive=1);
filter: Shadow(Color=#00cc66, Direction=45);
filter: Wave(Add=1, Freq=2, LightStrength=30, Phase=20, Strength=7);
filter: FlipV;
filter: FlipH;
filter: Chroma(Color=#9999cc); /*?*/
filter: Gray; /* for grayscale */
filter: Invert; /*colors that is*/
filter: Light;
filter: Mask(Color=#9999cc);/* ~ replaces transparency*/
filter: Xray; /*Sucks!*/

http://www.ssi-developer.net/css/visual-filters.shtml

please let me know if you know of some others... just to complete the collection.

IE Visual Filters

css, ie, filter

CSS