Taobao:
Taobao is the first and largest Chinese online retail marketplace, and is an Alibaba group subsidiary. Since 2003, Taobao has grown and established itself as the leader in this sector. With a registered user base of more than 145 million as of June 2009, Taobao represents an overwhelming majority of online shoppers in China. In 2008, Taobao's transaction volume, or gross merchandise volume (GMV), was 100 billion RMB. Taobao.com's strength is comparable to the well known eBay.
Taobao does not have an English interface. That's our #1 goal here at YOYBUY is to provide you a convenient, simple, and trustworthy English Taobao shopping site, with items that are guaranteed to be great quality products for the lowest price in the world.
Tmall
"天猫", English Name: Tmall, also known as Taobao mall，was found by Jack Ma based on taobao.com and it’s the largest B2C online shopping platform in China. The mall integrates thousands of home brands, manufacturers, to provide a one-stop solution for businesses and consumers. On November 11, 2013 , only a day, its sales reached 35000000000.
Paipai:
Paipai, the second largest e-commerce platform after Taobao, belongs to the well-known Tencent industry (QQ). It was created on 12th September 2005. The first announcement of their formal operation was released on 13th March 2006.