Payment gateway software is usually delivered pre-integrated as part of an e-commerce platform. This type of software can also be used separately by companies who do not want to limit their options to the integrations provided by e-commerce vendors. While most providers of e-commerce platforms offer integration with the most popular payment gateways, other options may be preferable, especially for markets that aren't well served by the main players.
There are also online advertising laws that protect consumer privacy and ensure truthful marketing practices online. As an e-commerce business, online advertising is a major part of your strategy. Over the past decade, federal and state governments have passed new online advertising laws. As you expand into online marketing, it is important to be familiar with these. The CAN-SPAM Act, for instance, sets the rules for advertising through email, the most important rule being that consumers must be able to opt out of messages from businesses.