If I may make a suggestion, perhaps you might want to make a Project Resources space page and put that link on the project page. Either works, but I find members more likely to add to the space page which keeps the leader from having to be the one to add all the resources that are found. It also seems to engage members. You can highlight the favorites if you like and then refer new members to the page for guidance.
Of course, I am sure you know what works best for your project. I just didn’t know if you had thought of it. Nae taught me to do that when we put up US Civil War.