Enhancing flowering through pruning

Recently I've seen a few people out pruning some of there flowering shrubs.  While I applaud the effort, this may be reducing the amount of flowering that you'll see this year.  Azaleas and other plants that flower on "Old wood" or last season's growth are best pruned after flowering.  This way, the plant can spend all spring and part of summer growing new twigs and stems that will hold next years flowers. 

Photo by Joseph LaForest, Bugwood.org