Official tourism site
http://www.piemonteitalia.eu/
Wine region is primarily in the Langhe, Monferrato and Roero areas. This is the official site of the local tourism consortium:
http://www.langheroero.it/index.jsp?idProgetto=2
I also recommend to get a guidebook (even at a library) or to look at other resources online. I know that Rick Steves does not devote a lot of his books to Piedmont, but there is a plethora of other resources that do, both online and in print.
The most visited places are Lake Maggiore, Lake Orta, Turin, Langhe & Monferrato and the Alpine ski locations (especially Sestriere and Limone).
The official website above gives you plenty of ideas:
http://www.piemonteitalia.eu/vedere.html?lang=en