XM Satellite Radio said that during the first quarter it will extend its XM NavTraffic information service to nine new markets. These new markets include Cincinnati, OH; Cleveland, OH; Denver-Boulder, CO, Milwaukee-Racine, WI; Portland, OR; Providence-Warwick-Pawtucket, RI; Sacramento, CA; San Antonio, TX; and Wilmington, DE. It currently provides service in 22 metro areas.