This is an old revision of the document!
The default Horizon for stellar.org is getting buzzy. We need to start using others but we don't know were to find them. Well this is the beginning of a list to start collecting them. As I find them I will add them here.
https://horizon-live.stellar.org default livenet try not to use this unless you have to (having problems now)
https://horizon-testnet.stellar.org default testnet
https://api.gly.sh/ from Tyler van der Hoeven on slack @tyler