Hey, does anyone know a site that contains all of the CSS link filters and/or tutorials on them? Please post! Thanks in advance!

I don't know about ALL of them, but I found one of the image fade out ones on a site, looked in the source for the credits and found Dynamic Drive.com (http://dynamicdrive.com).

I did a search there for Gradual-Hightlight (http://search.freefind.com/find.html?oq=filters&id=6299074&pageid=r&lang=en&query=Gradual-Highlight&Find=Search&mode=ALL&search=all) (name of the image fading code)
You can probably find some codes on there =)

You can look at Dodo's site. http://dodo.pitas.com/ She may not have all the link filters, but there's a lot! @.@