Wikipedia is a free online encyclopedia with the aim to allow
anyone to edit articles. Wikipedia is the largest and most popular
general reference work on the Internet, and is ranked the fifth-most
wikiHow is an online wiki-style community consisting of an extensive database of how-to guides. Founded in 2005 by Internet entrepreneur Jack Herrick,
the website aims to create the world’s most helpful how-to instructions
to enable everyone in the world to learn how to do anything.