Off the top of my head, memes are one of the biggest contributions. Examples such as nyan cat, rickrolling, crudely drawn cartoons etc. Not to mention 4channers

Off the top of my head, memes are one of the biggest contributions. Examples such as nyan cat, rickrolling, crudely drawn cartoons etc. Not to mention 4channers once even rigged the Time man of the year poll. One can also find negative influences such as extreme trolling. The influence is not on the technical side of things, but more to do with shaping internet culture.