I found a comic made by matt burt (or gunmouth) but I can't find the original source. I managed to find this , but I have no idea where he posts it.
Should I research first or can I already post it?

Post it as it is, if we find another source we will update it.

Go ahead and post it. We're not SO strict about providing sources that we're not going to let you upload it if you don't know the source :P

Ok thanks! :D