You may see references to Wikipedia. Wikipedia is a general encyclopedia site, which is very good for finding out all kinds of facts about the world we live in.
Cacheopedia is inspired by Wikipedia and we use the same server software. Because of that, we are also borrowing from their help pages. We are editing these pages to fit Cacheopedia, but some references may still remain.
We may also use interwiki links to reference a Wikipedia article, rather than duplicating that article here.