Wierd Stuff

Wow, these things are wierd... well, I found these wierd signs on the internet like § and æ. but they have codes, like æ is alt + 0230 with the number pad on your keyboard. Some of them I dont even know what they mean, like ¤.Is it like a turtle or something¿ heh, get it...a...upside...down...*ahem* well,here's a hyper-link