Multilingual tests/language exercises.
A free online tutorial.
Free interactive audio/visual Spanish lessons that teach over 500 words and phrases, free Spanish quizzes and a game. Free sections include: Greetings, Travel, Survival Expressions, Colors, Numbers, Months, Days of the Week, and hundreds of other useful words and phrases.
Tools, basics, reading practice, vocabulary, glossary, translations.
Word and sentence translation, free Spanish lessons, flashcards, reference material, massive Spanish dictionary with audio pronunciations, forums and more. Really nice!
Syvum Interactive Education
Spanish - English Translation Games. Quizzes on basic vocabulary, colors, days, months, numbers, food & drink, fruit and vegetables.
Vocabulary Training Exercises
In English, German, French, and Spanish. Test your vocabulary in dozens of areas and even create your own tests.