It would be better to have the Amazon(.com/.be) tag source search, not only for the album name, but also for the artist name. Album names tend to be rather generic, and if I have an album called "Greatest Hits" or something like that, I would never find it automatically. Having to type it in every time works, but is not really handy. Perhaps you can make a setting in which you can choose which field will be included in the search.
You can edit the script yourself
Moderation: Removed full quote of previous post.
Thanks Dano, just what I was looking for!
Amazon is not available for use with Mp3tag anymore.