Pimsleur Approach
www.pimsleurapproach.com
Courses can be taken anywhere; offers about 40 languages and promises you can begin to speak Albanian, Ukrainian, or even Ojibwa in 10 days. 

Rosetta Stone
www.rosettastone.com
Software using the Dynamic Immersion method reconnects you to the skill set you used for learning your mother tongue; offers 30 languages, including Pashto, Tagalog, and Welsh and promises competence in two weeks. 

Teach Yourself
www.teachyourself.co.uk/language.htm
CDs and books progress at varying speeds, depending on your goals (are you doing business abroad, starting out, or just in need of a refresher?); offers 200 languages, including Nepali, Serbian, Gaelic, Urdu, and Croatian and promises you can learn the first 50 words in as little as a day.

Unforgettable Languages
www.unforgettablelanguages.com
The Linkword approach developed by memory expert Michael Gruneberg connects foreign words with English imagery (“The Russian for cow is karova. Imagine driving a car over a cow”); offers 30 languages and promises 100 words an hour.

Berlitz
www.berlitz.com
A classic that still works, Berlitz’s conversational method involves one-on-one and small group classes in person or virtually, online. Offers about 50 languages, including Amharic, Laotian, and Tamil.

Living Language
www.randomhouse.com/livinglanguage
No tricks here; recordings, course books, and a dictionary teach 22 languages, including sign language, the traditional way—with lots of studying; promises competence in six weeks.

Assimil
www.assimil.com
The Intuitive Assimilation method consists of a passive phase (listening and reading) and an active phase (reproducing hidden text orally or in writing); offers nine languages and promises competence in a comparatively slow four to six months.