Greywater Re-use-todo & not todo-Any other good references?

Anyone else have sites (related to this) they want to share?

I found this link which is a good read before trying implement greywater re-use:
http://www.oasisdesign.net/greywater/misinfo/index.htm
Don't repeat mistakes others have made (see examples of some systems that (oops) store and turn greywater into nasty foul-smelling "blackwater")

Compilation of Greywater Laws (various states):
http://www.oasisdesign.net/greywater/law/#ipc

I am wanting to avoid problems w/ greywater use -- also re-use of groundwater run-off recycled from sump-pump. Info on this site about "stubbing-out plumbing" for future re-use is interesting. Also avoiding cross-contamination or backing up into house if grey-water lines get clogged (real possibility it seems). Loads of info available other places, but here in format easier for moi to understand! Lots to read, but easy-enough-to-follow and pix that my eyes didn't glaze over!
-MaryS