Discount retailer Target is rolling out a new ad technology that will let shoppers know when their favorite products are on sale.

Visitors to its website will be able to pick what products they are most interested in and set up custom views of the ad and request alerts when their favorite products are on sale.

They also will be able to view coupons, see top 10 deals, share information via Facebook and Twitter and create their own mobile shopping lists for their next visit in-store or online.

“The challenge is always going to be user adoption… Not every consumer will seek out benefits like this right now, but over time this could pay … dividends”, said Andrew Lipsman, senior director of Industry Analysis at ComScore.

The service called “My TargetWeekly” can also be found on the Target’s Facebook fan page, and according to Target, the more guests “love” a product, the smarter the recommendation engine will become.