If you haven't already done so, Voice Over "blogmaster" Bob Souer maintains a wealth of information for the taking on his Voiceover Boblog.  Anyone can see that Bob spends a lot of time researching his information and on his presentation for the benefit of Voice Actors. 

All of us, whether you're a complete noob or a seasoned pro, should always be open to listening and learning new things . You may just glean one nugget that'll turn to polished gold. Go there!