Nowadays, there are constant increases of people that actively produce and consume online content. They use various tools to create and share information with others, namely: blogs; forum; photo & video sharing and social networking sites. As a consequence the development of services or mechanisms for the acquisition of knowledge from Internet users is currently observed as crucial. However, most of such knowledge is often unstructured and is only available in a tacit form. Thus, this paper presents a framework to facilitate knowledge management to support communities’ establishment. Its main objective is to build a community knowledge base from cyclical conversion of individual to organizational knowledge representations creation, and consequently, to allow specific reasoning and decision-making.