Amazon 'Prime Day' sales is back on Tuesday, July 12

NEW YORK — Amazon is renewing its "Prime Day" July sales gimmick this summer.

The e-commerce powerhouse launched the discounting event last year to commemorate its 20th anniversary and to advertise its $99 annual Prime loyalty program, which offers free two-day shipping, during sleepy summer shopping months.

It remains to be seen whether Amazon's event, on July 12 this year, will be a hit or a bust. There was online grumbling last year that the deals were unimpressive, that deal items ran out too fast and were only available for a limited time.