E-commerce, the buzzword for looking something up on the Internet and purchasing it, has never been just about the random consumer. Businesses too search for goods and services and buy them on-line all the time. The brand engagement firm Sullivan created a nice infographic recently about the growth of B2B (business-to-business) e-commerce, estimating B2B online sales to top $1.1T (yes, trillion) by 2020. 9 out of 10 execs purchase business products online with half of them buying a competing product to what they originally searched for because the competition made it easier to purchase.
You can find more details as well as the infographic here