dictionary.com has a neat feature to build your vocabulary not just in English but also in Spanish.

Spanish Word of the Day gives you a different word everyday. You can visit dictionary.com to see each day’s new word or, better yet, sign-up to get a new word everyday either by e-mail or in your news reader.
If you’re a foodie the blog Peru Food will be of interest. It’s tag line, “Peruvian cuisine is still relatively unknown to the English-speaking world. This blog is one attempt to remedy that situation.”