Ecommerce is the general term for selling online, you may have already sold items online via Ebay, Etsy, Amazon and other auction sites. Have your own online shop will enable you to have better control on all aspects, also once setup up running costs and the cost of sale can be substantially cheaper, those marketplace percentages and forced advertising costs add up!

Often tailoring a commercial package can be the best scalable approach, but depends on factors such as the number and type of products, also whether you require B2B sales as well.