Learn basic Spanish with Study Spanish, a website that features free basic Spanish tutorials. Although the website actually sells CDs of conversational Spanish lessons, the free resources available on the website are very useful and extensive. It's a great way to start learning about one of the most spoken languages in the world.
Study Spanish presents lessons that are easy to understand. The grammar explanation is in-depth starting with the gender of nouns - the use of el and la. It also has a long list of vocabulary words which are categorized, cultural notes about the language, idiomatic expressions used in everyday conversation, and sample quizzes. It also has "Listen and Repeat" drills to help you pronounce the words like a native speaker.
The site is useful to anyone who either needs to study the basic of the language, or to just brush up on the Spanish lessons learned in high school.