A listing of lesson plans and multicultural classroom resources offered in many different languages, from Apache to Yiddish. Some languages require special fonts for correct display. The site is rudimentary but offers a lot of content.
Memrise offers thousands of video clips in their courses. These video clips capture native speakers using their language in their hometowns. This helps familiarize yourself with accents, voices, and culture. You can also use their “mems” to create mnemonic devices that help you remember the words, making it more enjoyable as you go.
50 languages is a free online educational resource in several languages. On this site, you will find everything from audio-visual material to tests. The is an app for Android and iOS that can be used on the go to keep a language in active use.
Originally created for the U.S. Government, these resources are now freely available to the public. With 72 languages covered, there are plenty of resources to reinforce anyone on their path towards fluency. The lessons on this site are in PDF format, allowing you to follow along with the audio as you learn. There are workbooks available too.