Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Radio Information Service or RIS is a reading service for the blind in Pittsburgh, Pennsylvania. It is carried via subcarrier on WDUQ-FM in Pittsburgh. The RIS weekly audience is 1,200 listeners with two-thirds of the audience over 60 years of age. Most listeners live in Allegheny, Washington and Westmoreland Counties but RIS also serves nine other counties in the region, including Armstrong, Beaver, Butler, Cambria, Fayette, Greene, Indiana, Lawrence and Somerset. RIS also serves parts of Ohio and West Virginia. Since its first broadcasts of only a few hours, RIS has grown to be a 24/7 radio station. Listeners access RIS through a special FM radio receiver, over the Internet, on Comcast Cable systems or through the RIS Telephone Dial-In Service. More than 200 people volunteer with RIS each year.