Ok, so I decided to create a NSMB speedrun wiki, which will hopefully help new players get introduced to the community and the various runs. Do you guys think this is a good idea? The page would contain strats for each individual level, as well as general platforming tips.

Here's the link: http://new-super-mario-bros.wikia.com/wiki/New_Super_Mario_Bros._Wikia

Hopefully somebody can help me set up the page, as I have little knowledge about website creation.

That sounds like a wonderful idea,sadly I' don't know anything about website creation.