Wikipedia is a starting point not an endpoint, and as a primer and resource for sciences it's pretty good - you can see if any articles have any major problems by checking the edit history and by reading the talkpages.
Conversapedia is so goddam awful, it's not worth discussing in any serious way - compare the wikipedia article about the Moon to that of Conservapedia:
Moon - Wikipedia
http://www.conservapedia.com/Moon
The conservapedia doesn't even
tell you anything about the moon, just why it's evidence of god!
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