Here is a website that introduces us to Marx Myths and Legends.
Here is how they describe their website:
Typical subjects might be “Marx and socialist utopianism,” “Marx and economic determinism,” “Marx and state control” or whatever. We are open to relatively specialised more technical subjects such as “Marx and theories of crisis” or “Marx and humanism” or myths about Marx’s personal life, but the intended audience is the general public, and articles should be written in accessible language, as well as being well-researched.
Also, we are looking at Karl Marx — not Engels or Lenin or socialism in general. The purpose, however, is both to help to dispel the multiple layers interpretation and misrepresentation that obscures Marx’s work, and to encourage a critical approach to the reading of Marx, rather than trying to create some new kind of orthodoxy.
In addition there is a blog http://marxmyths.blogspot.com/
I will try to stay away from mearly repeating anything that is covered at the above websites.