Google Scholar is a web search engine.
Google Scholar provides a simple way to broadly search for scholarly literature. From one place, you can search across many disciplines and sources: articles, theses, books, abstracts and court opinions, from academic publishers, professional societies, online repositories, universities and other web sites. Google Scholar helps you find relevant work across the world of scholarly research.
Where is this?
Searching by image allows you to do a reverse image search and discover all sorts of content that's related to a specific image. For example, search using a picture of your favorite band and see search results that might include similar images, webpages about the band, and even sites that include the same picture. (Google)
LANIC's site provides research and academic resources, as well as being a source for news, art, music and recipes from Latin America.
LANIC’s editorially-reviewed directories contain over 12,000 unique URLs, one of the largest guides for Latin American Studies content on the Internet. Information can be found in English, Spanish and Portuguese.
The site hosts digital content on Latin America through its Etext Collection, including thousands of full text books, journals, speeches, and research papers. Included are the full text of over 2,000 speeches by Fidel Castro; over 75,000 pages of Presidential Messages from Argentina and Mexico; and hundreds of papers on Latin American topics presented at conferences around the world.
It also maintains an extensive collection of Latin American Government Documents (LAGDA).
(Description taken from Wikipedia)