Learning online is quickly becoming one of the best ways to learn English. There are many new and exciting programs with free services. When signing up for a program, make sure the course you offers extra services such as email support, online tutors, and scheduled chat line interaction. 

GlobalEnglish - Offers ten 40-hour online English courses for $19.95 each. Has a free membership program, as well.

EnglishTown - One of the largest free online English sites. Lots of features.

Online English Courses - Dave does it again with another great list for online courses.

TOEFL Practice - Dozens of links to help you improve your TOEFL score.

TestDen - 60 Days of online TOELF listening, questions and help ($69.95). Classy site. A little pricey.