Do you have any of the following questions:
What it Puerh?
What is Sheng (green,uncooked) and Shu (black,cooked) Puerh?
What are some of the top Puerh factories?
What are some of the most notable tea mountains?
What do the 4 digit numbers on some wrappers stand for...like 7542 0611 etc.
You can find the answers to all of this and more on the wikipedia page on Puerh.
Documentary on the history of Puerh
Here are links to other resources for Puerh info including some blogs where you can find reviews:
Puerh A Westerner's Quest
Ancient Tea Horse Road Blog
Hou De Blog
Cha Dao Blog
LJ Puerh Tea Community
Here is a list of vendors to obtain Puerh, gaiwans, yixing teapots and other teaware:
Ebay vendors - ship from China 3-5 week for delivery
Dragon Tea House
Vendors located in the US:
Vendors located in China: