Welsh Language Wikibook

"This wikibook has been written as an aid to learning Welsh (Cymraeg or y Gymraeg, pronounced [kəmˈrɑːɨɡ], [ə ɡəmˈrɑːɨɡ]). It is a Celtic language spoken natively in Wales (Cymru), in England by some along the Welsh border, and in the Welsh settlement in the Chubut Valley of Patagonia, Argentina. There are also speakers of Welsh throughout the world, most notably in the rest of Great Britain, the United States, Canada and Australia."

http://en.wikibooks.org/wiki/Welsh_Language