I'd like to suggest additional criteria, on the topics of language and audience -- I'm thinking these could go under content validity and fitness of purpose:
- the resource specifies the target audience.
- the tone (e.g., familiar or proper) and difficulty of language used to communicate learning materials is well suited to typical learners' needs and comfort level.
- the presentation material is written and organized such that complex content is easier to understand
I think WE could really benefit from identifying and featuring quality resources. I hope this process is able to move forward in the near future.
These are valuable suggestions and there is no reason why we can't focus energies on identifying and featuring quality resources.