Freebase is an open community database from MetaWeb Technology, with content supplied by the Freebase community. Use this tool to search for articles on an endless supply of topics. As in the case of any information found on the web, use your own judgement as to the accuracy. Still, these articles are a good source of information as well as links to more. Just add search words in the text box and touch the Enter key to get search results with article links and a calculated relevance score for each. Runs best on most 8-10 inch tablets and requires at least Android 3.1. Of course, it requires internet access as well.