Where to post game cheats? [closed]
Solution 1:
I usually look to gamefaqs.com. Though they are primarily limited to text-based data they do have a form to submit maps and images (and I think this qualifies).
Looking at the New Super Mario Bros. Wii section, I notice that there are already several FAQs that feature the same data collected by your son (though his versions are nicer looking). I would look into uploading it there anyway if he is so obliged, as GameFAQs is no stranger to redundancy.