The great fall of internet enabled services in 2002 has not taught the lesson to investors.The e commerce is another bubble that may collapse in 2-3 yrs time frame & with that will go billions of dollars down the drain.The most online shopping portals are simply using the money of investors to pay high salaries,rent office space at outlandish rents & selling merchandise at below purchase price.How can a business survive without adequate margins to grow unless promoters want just fancy valuations to sell it by creating fake revenue.