Daily-deal sites, known for blasting e-mail offers for limited-time discounts at restaurants, spas, and gyms, were one of the hottest things on the Internet in 2011. But as more and more websites entered the market, people grew immune to their clogged inboxes and stopped buying as many daily deals.
But the sites have recently changed their businesses to lure back customers.
Groupon, LivingSocial, and Google Offers are going beyond the prepaid deals and vouchers they began with and are now selling items such as TV sets and iPhone chargers or offering free coupons from local and national retailers.
The changes have gotten my attention. I’ve found myself downloading the apps again and scrolling through my e-mail’s spam folder to see what kind of deals I may be missing Full story for BostonGlobe.com subscribers.