You will find Language
Guides for dozens of languages at the Yamada Language Center
from the University of Oregon.
There are lots more links at Helpful
Sites for Students of Languages.
offers tutorials in French, Spanish, German, and Italian. (You
will need to create a user name the first time you visit the site.)
You can also try these Vocabulary
Training Exercises in English, German, French and Spanish.
Archive will help you locate and download special character
sets for many languages.
site has detailed information about numbers of speakers of languages
worldwide along with information on dying and dead languages.