I can not list them all. But I personally am specially grateful to the anonymous person (?Scott Alexander) who created the highly-informative 'Red Hot Jazz' website:
There are also many great video-makers, who have done us huge favours by making the best music available on YouTube. I follow several of them, and have long been impressed especially by the work of the video-maker codenamed digitalalexa:
It is virtually impossible to find or buy the sheet music for the wonderful tunes the bands played in the first half of the Twentieth Century. Lasse Collin has been working them out by ear to the best of his ability and publishing his findings (usually complete with lyrics where possible) - free to everyone - on his web-site.
New Orleans jazz is played by heart and ear. You fake some good old tunes and improvise on the melodies and the chords they are built on. Most of the tunes were forgotten a long time ago;, nobody asked for them. ...... To preserve these tunes is more of a cultural achievement. Often you have to transcribe them from old recordings, because there has not been any sheet music available for many decades, if ever.
Lasse adds (with undue modesty) that his transcriptions
are mostly an interpretation of the song and don't claim to be quite right, simply just "good enough for jazz". The upper section with the chords is for C-instruments (banjo, guitar, piano, bass), the lower with the melody is for instruments tuned in Bb (trumpet, clarinet, soprano- and tenor sax, trombone). Have a look at the tune, memorize it, put in your soul, and play it hot!