FileMaker Web Site and Hosting
FileMaker Business Alliance members who also host FileMaker solutions in the cloud.
FileMaker Web Site
Third party companies authorized to resell FileMaker liceneses.
PCI FileMaker Hosting
My personal choice for hosting FileMaker solutions in the web. They even answer the phone!
FileMaker Web Site and Resource
I love this link. It shows all the versions of FileMaker and the features that were released with that version. Helps when you are trying to determine if a feature is supported in FileMaker 12 but you can only run FileMaker 17 on your computer.