The purpose of this article is to study the practice of online re-information. The case studied is the sphere of re-information on the French web, namely hundreds of sites and blogs in connection with the ideas of the French far right practicing re-information., where new information is proposed on political, religious, social or cultural news. While the use of the prefix re- in "re-inform" indicates the idea of renewal and a critical revision, it is used by re-information sites to mark rather a counter-information, a denial or a rejection of any other information. After having defined the practice of re-information, the hypotheses and the methodology, our study focuses on the discursive and communicational orientations in the re-information sphere before bringing elements of interpretation by relying on the question of the false information and on studieson the sociology of beliefs.