How do I rotate a group of objects? I have a group of objects, 3 cylinders and 2 text objects. I am able to rotate a single cylinder by adding a rotation keyframe on scene 1 and setting the z rotation to 359 and adding a keyframe on the last frame.

How do I do this for a group of objects?
You have a couple options:
Parenting:
You could Parent (CtrlP) the other objects to an empty or another object, and then rotate that empty/object.
Keyframe all the objects:
Select all the grouped objects by selecting one and the pressing ShiftG&gt; Group, then insert keyframes for them all by pressing I&gt; Rotation.