This video talks about what a revolve is and demonstrates how to create one. 

This video talks about how to control the size of the hole in the center of your revolve. It also discusses how to create a sphere.

The one rule when revolving is that your artwork can only be drawn on one side of your center line. 

This video demonstrates what happens when you change the location of your axis in relationship to your cross-section. 

This video demonstrates how to create a linear pattern of a part.

This video demonstrates how to create a linear pattern of a feature within your part.

This video demonstrates how to create a circular pattern.

This video demonstrates how to sweep a sketch along a path.

This video demonstrates how to sweep along the edge of an existing object

Lofting (sometimes called blending) is a method of stringing together a series of different cross section drawn on multiple planes. This is a fast way to create complex geometries. 

Lofts work best when you use them to connect cross sections with the same number of sides, however they can be used to connect cross sections with different numbers of sides (though they will be pickier about it).