Ezine Articles - Tons of articles about language learning.
How to Learn A Language - Good advice for someone who isn't sure how to start to learn a language.
How To Learn Any Language - Lots of language learning information as well as a great forum.
Language Impact - Lots of useful language information, check out the language learning articles.
Omniglot - A wonderful site with information about nearly any language you can think of. They provide in depth information about writing systems.
Success With Foreign Languages - This book explores the learning methods of seven different people who have achieved success with foreign languages. In PDF format.
Unilang - An active forum for language learners .
General Learning Resources
Download.com - Search for and download free music by region.
Mondo Times - A great resource to find online newspapers from around the world.
The Mixxer - A great place to find a language exchange partner.
wwiTV - Links to online TV stations from around the world.