http://hallofbeorn.com/Cards/Search?CardSet=First+Age
Scenarios can be found here:
http://hallofbeorn.com/Cards/Scenarios/Hunting-of-the-Wolf
http://hallofbeorn.com/Cards/Scenarios/The-Isle-of-Werewolves
http://hallofbeorn.com/Cards/Scenarios/The-Seat-of-Morgoth
For those who haven't already done so, you can get all of the details of Ian's epic First Age quests:
http://talesfromthecards.wordpress.com/first-age/
For anyone worrying that custom cards will now be returned in search results - don't. Unless you specifically filter for it (e.g. Set = First Age or Sphere = Mastery), or check the "Custom" box, custom cards will not be returned in the search results. Only official cards are returned by default.
Enjoy!