With my seemingly endless list of mortar shell, kassam and Grad rocket fire into Israel, I thought I would provide some visual aids so that my readers will know what I am talking about.
Globalsecurity has an overview of the launching of rockets of all types against Israel. If you read far enough (or if you scroll down) you will see a map of Israel and the places that are being hit by the various types of projectiles.
Here are some pictures of kassam rockets (sometimes spelled qassam) waiting to be launched.
Grad projectiles, sometimes called the improved Katyusha, can travel farther than kassam rockets, and are larger.
Slate magazine has an explanation of what a mortar is, in addition to other deadly things here.