sigy tut

ok so im trying to figure this whole siggy thing out im great with photo editing of all kinds and im looking and looking and looking at all these tutorials and im still clueless is this like scrapbooking online a bunch of clicking and pasting on an online pic? or is this some kind of downloaded program....idk ive seen a ton of diffrent stuff can someone explain it to me in plain english what this is how it works and mabe a really simple vid tut that helped you?

a lot of people either use photoshop or gimp to make them

It's basically like scrap booking... Lots and lots of layers :-)

ok thats what i thought .....has anyone used pixlr the online photoshop program and had good luck?