Globalsources	Alibaba	Block Machine	Block Machine
EC21	ECVV.	Tradekey	Obey
Ioffer	MFG	Quel	Made-in-china
Thomasnet	Yellowpages	trade.meritline.com	Eceurope
Tradezone	Worldbid	Kampass	Europages
Google	Baidu	Yahoo