Web-based Applications and Services of Annotation in Electronic Commerce

With the advent of the web 2.0, user-centric, consumers are increasingly becoming producers of information. He can express his opinions on the monetary exchange of goods, services and information through annotations. An annotation takes many different forms and is used for many different functions. This annotative activity is carried out by systems specially developed to annotate the products or services of an online commerce web site. In the literature, many tools have been developed to annotate various products and services. In this article, we present a classification of thirty annotation tools developed by industry and academia. This organization of annotation tools is built on the basis of functionalities that they offer. From this classification, we present our observations and the limits of these systems.