Sure it can currently all be found, if you have the patience to look for it and know it's there for the finding. Right now there is no one convenient place where I can go to find a succinct list of links to all the most useful information about a particular game. The primary purpose of having such a list in one place is that we've done the work of google searching for you, and left out all the results that aren't relevant to speedrunning or game research. The main (only?) drawback, and why this system might not work, is keeping it up would require a lot of work. Creating it for the first time for many games probably won't be so hard, but then keeping up with speedrun records and categories might be something that is not done well.
Super Nintendo
HGame Name
HHSuper Mario World
HHスーパーマリオワールド
HWebsites
HHsmwcentral
HHmario wiki
HHwikipedia
HHSMW Tricks
HHTASvideos topic
HHSDA topics
1 2 3 4
HHGamefaqs
HHneoseeker
HRuns
HHTool Assisted
HHH96 exit 1:21:29.63 by Fabian
HHHHPublication
HHHHSubmission
HHHHYoutube
HHHHArchive.org
HHH11 exit 10:20.6 by bahamete, Kaizoman666, PangaeaPanga
HHHHPublication
HHHHSubmission
HHHHYoutube
HHHHArchive.org
HHHsmall mario 86 exit by PangaeaPanga
HHHHPublication
HHHHSubmission
HHHHYoutube
HHHHArchive.org
HHConsole Speedruns**
HHH96 exit 1:28:55 by <unknown>
HHHHnicozon
HHH11 exit 10:44 by yaposon
HHHHnicozon
HHHsmall mario 15 exit by jimsfriend
HHHHgoogle video
HHHHArchive.org
HHH8 Castle run
HHHH<whatever is the fastest>
HHLet's Play
HHHI'm not really into LP..
HOther Things of Interest
HHvgmaps
HHFusoya's Niche
HHKaizo Mario World
HForeign Language Resources
HHI can't adequately fill out this section because I only speak english
HH日本語
HHH<Japanese Link 1>
**Taken from andrewg SDA topic
*I didn't watch this, or even open youtube. Just googled it and took what I saw there.
I just think something like that above would be very useful.