Multilingual Computing has published a "Guide to the Spanish Speaking World." It includes an article from yours truly on Web localization for the US Hispanic market; in the article I profile Southwest Airlines, which recently launched a fully featured Spanish-language flight reservation engine.

Additional articles talk about the variations of Spanish around the world as well as in-depth information on Spanish in the US market. Overalll, it's a great resource and best of all, it's free.

You can download the report here.