see if your library has or can get you '501 QUILT BLOCKS A Treasury of Patterns for Patchwork and Applique'. it's put out by Better Homes and Gardens.
it has a colored plate of each block and very easy to understand instructions. i like it because it doesn't bog you down with any information you don't need. for online blocks, go straight to
http://www.quilterscache.com/QuiltBlocksGalore.html
they have the widest selection in one place for every kind of method.