I love Spring's ideas...and agree completely...
One other thing that has been difficult when looking at breeder pages (such as, when looking for a Flemish breeder), was the fact that many don't update them regularly. So, I found many that hadn't been updated in many months, and thus I couldn't see what
current litters they had, what bucks and does they were actively breeding, etc.
So I guess...updates! I know that rabbitries have a steady stream of litters, but maybe figure out an easy way to post about new litters (once they're weaned)?
I guess that's another thing...I've encountered sites where someone will post a picture of the litter so young, that your average pet bun owner won't be able to tell what the buns will look like once they're a bit more grown. I think by the time it's time for weaning, they're much easier to tell. Does that make sense?
I've also had a bit of a pet peeve with organization...such as making a little menu saying "current litters" and "bucks and does" and such so that it's easy to navigate...along with making sure things like captions for pictures are lined up underneath the picture, and not on the same row and then going beneath (hope that makes sense).
Maybe include some basic rabbit information; such as information about health, care, dietary stuff, what you feed your rabbits (so someone getting a bun can buy more of the same), things you recommend specially for that breed (like with lionheads, grooming tips and ideas), etc.
I hope all those make sense...let me know if they don't!