algodiv is an interdisciplinary research project focusing on the question of information diversity in online communities and the web, with an additional focus on the effect of algorithms and algorithmic practices. Funded by ANR from 2016 until 2019, the consortium essentially gathers sociologists and computer scientists who will adopt a mix of qualitative and quantitative approaches on a variety of web environments, from blog and micro-blog ecosystems to social media platforms, through wikis and image- and article-sharing websites.