OpenCart. OpenCart could be a great choice for small businesses without tech savvy employees. OpenCart is very simple to install and start using. It runs very quickly using simple code. OpenCart allows you to set advanced user privileges and separate access for users and groups. A simple code also has drawbacks; often for sale extensions and themes may not be up-to-date with security standards. 

OpenCart also has multi-store support that lets you stay on top of different stores from a single interface. This functionality lets you set products for different stores, use specific themes for each online store, and localise your websites. Product options and attributes are also quite flexible with OpenCart, and the solution lets you add extra product variables.
As an e-tailer operating in today’s modern environment, you have your work cut out for you — more so than ever before. Not only are you dealing with a more competitive market, but your customers have higher expectations. It’s no longer enough to stock up on the right products, you also need to delight customers and be able to fulfill orders in the fastest, most affordable way possible.
IBM WebSphere Commerce has four product editions: there’s Commerce on Cloud for those who want to quickly go to market; there’s WebSphere Commerce – Express, which was made for quickly implementing an online presence; there’s WebSphere Commerce Enterprise, which was designed for high-volume companies and multiple sites; and there’s WebSphere Commerce Professional, an option for midsize businesses.
A fully customizable frontend to showcase your style is just the start. Create online look books, true-to-life videos, and even interactive content through AR and VR technology. Then, bring it to life. Shopify’s universal POS powers pop-up shops, product drops, and live events. Sync products, inventory, and customer data automatically across all your channels and expressions.
Web content management software helps companies manage large volumes of content that is used in online stores and facilitates the creation marketing campaigns, catalogs, and e-commerce personalization. Complex e-commerce platforms require different types of content such as text, images, and videos, which should be mobile-friendly and reflect the company brand.

The Free Music Philosophy used a three pronged approach to voluntarily encourage the spread of unrestricted copying, based on the fact that copies of recordings and compositions could be made and distributed with complete accuracy and ease via the Internet. First, since music by its very nature is organic in its growth, the ethical basis of limiting its distribution using copyright laws was questioned. That is, an existential responsibility was fomented upon music creators who were drawing upon the creations of countless others in an unrestricted manner to create their own. Second, it was observed that the basis of copyright law, "to promote the progress of science and useful arts", had been perverted by the music industry to maximise profit over creativity resulting in a huge burden on society (the control of copying) simply to ensure its profits. Third, as copying became rampant, it was argued that musicians would have no choice but to move to a different economic model that exploited the spread of information to make a living, instead of trying to control it with limited government enforced monopolies.[4]

E-commerce is the activity of buying or selling of products on online services or over the Internet. Electronic commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain management, Internet marketing, online transaction processing, electronic data interchange (EDI), inventory management systems, and automated data collection systems.
Two of the most important factors behind poor performance are server distance and load. If your servers are overloaded or too far away from your visitors’ locations, your site can load slowly. A Content Delivery Network (CDN) tackles this issue by distributing cached copies of your site to nearby locations from data centers around the world, thereby lightening the load on your main servers.
Modern 3D graphics technologies, such as Facebook 3D Posts, are considered by some social media marketers and advertisers as a more preferable way to promote consumer goods than static photos, and some brands like Sony are already paving the way for augmented reality commerce. Wayfair now lets you inspect a 3D version of its furniture in a home setting before buying.[60]
Bigcommerce also has a nice library of themes for you, divided into multiple categories, and all of them responsive and fully customizable. They were developed to establish a more modern, fluid user experience, utilizing cool new merchandising features for categorization and differently sized catalogs. There are both free and paid options available, and I have to say that those free ones really are attractive-looking.