Are questions asking for other resources on topic?
I think if the question has potential benefit a majority of blender users. It should be allowed to ask even though it might not fit the format. An example of such a question would be https://stackoverflow.com/questions/81584/what-ide-to-use-for-python this question has many userfull answers and is beneficial to a large group of users even though it is it is not considered a good, on-topic question for this site
I think the question needs to be general so that many people can contribute.
Any good free materials libraries online? there are really only a few - bad for the main site
Useful resource for blender tutorials? there are plenty of sites, youtube channels, blogs, etc. - good