LAS VEGAS - Mobile location-based services in the U.S. have gained momentum over the past few years, and are being widely adopted by consumers and enterprises.

Money Mailer Direct Marketing and Coupons Inc.’s Coupons.com have expanded their partnership to include mobile coupons.

Consumers using Research In Motion’s BlackBerry smartphones can now download Slifter, a free ad-supported location-based mobile shopping tool.