Favourite links

I must admit that I don't really keep myself up to date with all the hoya sites out there so I will just give you a couple of examples where you can start exploring.

MyHoyas is an excellent page to start with and is regularly updated
Hoyor.net has got tons of good pictures
Mypos - unfortunately not updated for a while but the pictures that are there are beautiful

Swedish Hoya Society - not updated for a few years but hopefully that will change soon

If you've got FB try searching for hoyas and there are several hoyagroups you can apply for