There are new Kellogg's coupons available over here. Just sign in or register.
There are some nice higher value coupons included:
Smart Start cereal $1/1
Special K Protein Bars $1/1
Special K Products $2/3
Raisin Bran $.70/1
Pop Tarts Mini Crisps $.70/1
50% off Kellogg's Snacks, Cereals and Pop Tarts
*feel free to report back prices of these items in the comments!