9 Downloadable computer software for use in shopping for retail goods; Downloadable computer software, namely, internet browser extensions, plug-ins, and applications for use with electronic commerce transactions and product price monitoring; Downloadable computer software featuring offers, deals, coupons, rebates, rewards, vouchers, price tracking, price notifications, price-comparison information, links to the retail websites of others, promotional materials, and discount information; Downloadable computer software with an Internet browser extension which provides information relating to offers, deals, coupons, rebates, rewards, vouchers, price tracking, price notifications, price-comparison information, links to the retail websites of others, promotional materials, and discount information; Downloadable computer software for facilitating electronic commerce transactions