Leftypedia is an online encyclopedia that inspired the creation of ProleWiki. If it weren't for Leftypedia, ProleWiki would never have been conceived.
However, ProleWiki chooses a different direction, because we believe political education should have a principled line, a declared political line, instead of a "catch-all leftism".
The main difference between us and Leftypedia is that we aim for an international Marxist-Leninist encyclopedia. That's it, really.
In any case, Leftypedia is already a resourceful encyclopedia that we at ProleWiki welcome everyone to read, although with a crtical eye. You should probably have a critical eye when reading what we write too.