Blizzard has released the new Class Q&A series by Greg Street (Ghostcrawler) which focuses on the Shaman class. You can read it here.  For discussion of this topic with other fans visit the following forum thread.

Blizzard Quote:
This week we’re starting our class Q&A series with Greg “Ghostcrawler” Street and the development team. We’ll be taking a look at each class and answering some of the top questions brought forward by their communities. First up, we take a look at the most asked questions from the shaman class and find out more about the design philosophy behind the class, the expectations for the class, and what may lie in store for it in the future.

Be sure to read the new Q&A.