Vimeo. I need to be able to direct upload.
It is possible to upload to Vimeo within Camtasia. There is not a custom share option for it, but Camtasia can tap into Apple's built in sharing framework, which includes Vimeo. Please see my response in this thread for more details: https://feedback.techsmith.com/techsmith/topics/upload-to-vimeo-camtasia-mac-3