Alibaba.com Limited (HKG:1688) is planning to spend $4.5 billion to set up a network of warehouses across China. The investments will be made in about 3-5 years. Yahoo! Inc. (NASDAQ:YHOO) owns about 40% of Alibaba.com and it is one of their best investments to date. Alibaba.com has about a 75.2% stake in the e-commerce market in China.