Brochos.com - a reference database of ברכות

Kellogg's - Corn Pops

Last Updated On: 10/28/13

Those made in the U.S.:

Brocho before eating this: Borei Pri Ha'adama

Brocho after eating the proper shiur of this: Borei Nefashos

Source: Star-K Cereal List

Those made in Canada:

Brocho before eating this: Shehakol Niyeh Bedvoro

Brocho after eating the proper shiur of this: Borei Nefashos

Source: Kashruth Council of Canada