E-commerce websites are sites that facilitate business or commercial transactions involving the transfer of information over the internet. Type of e-commerce sites, business-to-business services and financial management sites. Notable examples of e-commerce sites include Amazon, eBay etc.The rise of the internet in the 1990s made it possible for businesses to reach new audience over the web. Many businesses saw the potential to expand their customer base by offering goods and services online. Some companies added Internet elements to their traditional business models, while other businesses started as strictly online stores.