I am a member of the ASC as I breed American Singers. Below is a link to the site.
www.upatsix.com/asc/
I buy my canary seed and other canary supplies from Abba.
www.abbaseed.com
Birds n Ways has alot of info and links to other helpful sites.
www.birdsnways.com
Bird Tracker is the software that I use to help manage breeding.
www.cabinsoftware.biz
I buy leg bands from Red Bird Products.
www.redbirdproducts.com
I go to Bird Talk Magazine for information.
www.birdtalkmagazine.com/bt