RefDesk Alternatives

RefDesk is described as 'The Internet is the world's largest library containing millions of books, artifacts, images, documents, maps, etc. There is but one small problem in this library: everything is scattered about on the floor, with growing hordes of confused and bewildered users frantically' and is an website in the news & books category. There are 1 alternatives to RefDesk, not only websites but also apps for. The best RefDesk alternative is ReferenceDesk, which is free.