I'm just curious if anyone knows of some useful resources for learning more about the whole IDX concept (and MLS in general). I just started working with my first real estate client, and am now jumping into the wonderful world of MLS ;-).

The problem I have is that everything I've found so far tries to explain things in layman's terms, which is pretty useless from a web developer's point of view. I need something that covers the technical end of things and actually gets down and dirty.

Any help appreciated!