Hi, Michael -
Look at the crosslinks above.
Among us all, we have a huge collective collection of songbooks. We can't post every song from every book, so we've been posting at least the tables of contents. That way, if somebody Googles a song, they may find out that one of us has it in a book. It has worked especially well for school songbooks.
No need to post indexes for books included in Roud, or in the Traditional Ballad Index.
In some cases, like the John A. Stone 'Old Put' Songsters and this Russian Songbook, we are posting every song from some songbooks. You'll also find a number of full songbooks at http://www.traditionalmusic.co.uk/index.html and http://www.drinkingsongs.net.

-Joe-