Look what just I found!

http://www.septentrionalia.org/index.php
http://www.septentrionalia.org/etexts/index.php

Critical editions of Old Norse texts in pdf format (along with texts
in, and other materials relating to, other early Germanic languages
and Old Irish), including Alexanders saga, Snorra Edda, Heimskringla,
Hómilíubók, Grágás, the Grammatical Treatises, Völsunga saga. Also
"Lexica Poetica" [ http://www.septentrionalia.org/lex/index.php ], and
out-of-copyright works of scholarship in pdf format.

LN