I'm starting a list here in this post and will keep editing it with links to Ukulele Music Books.
There are many available online.
I'll start with a few and you can return to this post later as I add more.
You might also like my Original Post on Ukulele Resources or my later post on Ukulele Worship Music
- Ukulele Book of Christmas Music - 28 pages
- Tonya's Beginners Ukulele Songbook - (a few other files she has)
- "So, You Just Got Your First Ukulele" This is a book for beginners, but doesn't really have songs in it
- Caposastomusic - sheet music with notes and chords for Uke (also guitar and other instruments)
- Bytown Ukulele Songbook - a whole long list of songbooks to download, each book having lots of songs
- Ukulele Boogaloo songbooks (and their Christmas Songs)
- San Jose Songbooks