Reverb Explained!
by Dave Towne on Dec.17, 2011, under audio

Using reverb to create a three dimensional space while mixing can be complicated task for many beginning engineers. Back in the 70s and 80s, there really were 2 or 3 choices for reverb, but today there are even more choices and plug-ins can have 15 different presets for each. The gentlemen over at ProSoundNews decided to create a guide for reverb that explains each type and even offers mp3 samples of what each sounds like. This is a great starting point for any audio engineer new and old.
http://www.prosoundweb.com/article/in_the_studio_audio_effects_explained_part_2_reverb/