|The British Dendrobatid Group- a good informational website
Saurian Enterprises- There are not many breeders that I will recommend, but Pat Nabors is definitely one of them.
Kingsnake Dart Frog Forum- a forum for exchanging ideas and getting help with frog problems. It is a somewhat reliable source because sometimes the advice is inaccurate and the postings are of very little substance. However, that just depends on who answers your post.
The FrogNet Classifieds- a good site for finding CB darts from some of the better known breeders.
International Amphibian Day- an annual event that raises money for the M.A.R.S. foundation. Many top breeders sell their frogs at this event.
Robb Melancon's Homepage - the webpage of a good friend who has had experience with some really neat frogs. Lots of pics to look at.