I wasn't sure if this was better here, or somewhere in the Education sub-forums. I'm not in school, though. This is just for personal use; for fun and for research. At a glance: Looking for downloadable encyclopedias/knowledge-bases (non-Wikipedia, already have), and suggestions for research sites. More Info: I'd like to find any encyclopedias or databases of knowledge for offline use/downloadable. They can be general knowledge or topic-specific. Anything nature-specific, from a conservationist or naturalist or scientific view is great. And anything science. Some of my research needs are for writing short stories, so really, any reputable source of info is useful. (Examples: history of the old west, history of civilization, animals, weapons or gun history, nature encyclopedias, etc.) Thank you in advance if you're able to respond. I appreciate it.