Zoega's dictionary that Grace mentioned is online [
http://norse.ulver.com/ondict/zoega/index.html ], as is the much
bigger dictionary of Cleasby and Vigfússon on which it is based [
http://www.ling.upenn.edu/~kurisuto/germanic/oi_cleasbyvigfusson_about.html#images
].

There are more lessons here [ Old Norse Online (Todd B. Krause and
Jonathan Slocum; 10 lessons + grammar + runes)
http://www.utexas.edu/cola/depts/lrc/eieol/norol-TC-X.html ].

Some learning suggestions and links [
http://has55.www9.50megs.com/OldIcel/LearningOldNorse.html ].

There are some glossed texts and reference grammar here [
http://teaching.arts.usyd.edu.au/english/2000/icel/ ].

A rather old book, but still useful, Henry Sweet's Icelandic Primer: [
http://www.gutenberg.org/etext/5424 ].

"The Viking Society for Northern Research" publish some texts with
glossaries and notes, some with parallel English translations too [
http://www.shef.ac.uk/viking-society/ ].

More links:

http://www.oe.eclipse.co.uk/nom/norselinks.htm
http://www.home.ix.netcom.com/~kyamazak/index.html (see especially the
section entitled Eddas & Sagas)