Tourist Offices -- Contact the Austrian National Tourist Office, P.O. Box 1142, New York, NY 10108-1142 (tel. 212/944-6880; www.austria-tourism.com). In Canada, you'll find offices at 2 Bloor St. E., Suite 3330, Toronto, ON M4W 1A8 (tel. 416/967-3381). In London, contact the office at 9-11 Richmond Buildings, W1D 3HF (tel. 0207 440 3830; www.austria.info/uk).
Dispensing information for the entire country, the Austrian National Tourist Office is at Margaretenstrasse 1, A-1040 Vienna (tel. 0810/10181818). It cannot, however, make reservations for you. As you travel throughout the towns and villages of Austria, you'll see a sign emblazoned with a fat I (for information) in front of the local tourist office where you likely can obtain maps and might even get assistance in finding a hotel if you arrive without a reservation.
You might want to ask for the free English-language booklet Art and Architecture in Austria, which lists examples and photos of Austria's most renowned architectural sites.
Websites -- To begin your exploration of Austria, check out the sites for the Austrian National Tourist Office (www.austria-tourism.com), Tourist-Net: Austria (www.tourist-net.co.at), Vienna Tourist Board (www.info.wien.at), and Mozart Concerts (www.mozart.co.at).