Brochos.com - a reference database of ברכות

Kellogg's - Honey Smacks

Last Updated On: 1/9/09

Brocho before eating this: Borei Minei Mezonos or Borei Pri Ha'adama

Brocho after eating the proper shiur of this: Borei Nefashos

Source: Star-K Cereal List (and attached article)