EcoAgtube (https://www.ecoagtube.org/) allows anyone to register, activate their account and start uploading videos from their mobile, tablet or computer. Videos can also be brought across from YouTube and Vimeo accounts.
All videos relate to ecology and rural development in the broadest sense, but are not necessarily for training. You can search videos by language, category and keywords.
Users can create their own channels and projects have their own area for easy upload of project videos.