Vocabulary

Vocabulary.com * * * * *
It provides good activities and quizzes of vocabulary related points; common errors, idioms, phrasal verbs, words which create problems of spelling, pronunciation, etc...
By Vocabulary University, 2002. See the resource.

Vocabulary building * * * * *
Vocabulary quizzes, extensive list of vocabulary words with pronunciation, definitions, and examples. It also offers immediate feedback.
By Professor Charles Darling and Capital Community College, 2001. See the resource.