Easy to follow video for putting text on a circular path in Photoshop. Great for creating logos or stamps.

This video also highlights some good key caps. For PC; When using the elipse vector shape tool, hold down shift to keep the shape to a perfect circle, space will allow you to move the shape around without releasing the path.

Ctrl T for Transform. When Transform is selected, holding shift will again keep the object in proportion to the original shape and holding Alt when selected will make the object increase or decrease in size from the centre point. For Mac use the Apple key instead of Ctrl.