Well, I'm putting together quite a few rituals to add to my campaign, and was seriously considering writing them up in a format suitable for distribution by PDF. But now don't think that's going to be feasible, because if any name I use happens to get used by WotC, I'll have to change the PDF. Not only that, but I couldn't even make a ritual that, for instance, allows work to be continued if interrupted, even if it makes sense to do so (such as in the construction of a standing stone or something), because the Rituals chapter states that you can't resume an interrupted ritual.