Chalk Media Corp. TSX VENTURE: CKM

SAN FRANCISCO, CALIFORNIA--(Marketwire - Oct. 23, 2007) - Chalk Media Corp. (TSX VENTURE:CKM) today announced that it has released version 4.3 of Mobile chalkboard^TM, Chalk's proprietary mobile content deployment system used on BlackBerry^® handhelds.

The new version of Mobile chalkboard^TM has enhanced functionality including deeper integration with productivity applications and a more sophisticated reporting suite.

Chalk introduced the new version of Mobile chalkboard^TM at the CTIA Wireless IT & Entertainment event held October 23 - 25 in San Francisco.

The BlackBerry and RIM families of related marks, images and symbols are the exclusive properties and trademarks of Research In Motion Limited. RIM assumes no liability and makes no representation, warranty or guarantee in relation to third party products or services.

About Chalk Media Corp.

Chalk's new mobile content deployment system allows content to be pushed securely to BlackBerry^® smartphones. Our software and content help organizations communicate with their employees, business partners and customers. Additional information is available at www.chalk.com.

The TSX Venture Exchange has not reviewed the contents of this release and is not responsible for its accuracy.