Sign language and Web 2.0 applications are currently incompatible, because of the lack of anonymisation and easy editing of online sign language contributions. This paper describes Dicta-Sign, a project aimed at developing the technologies required for making sign language-based Web contributions possible, by providing an integrated framework for sign language recognition, animation, and language modelling. It targets four different European sign languages: Greek, British, German, and French. Expected outcomes are three showcase applications for a search-by-example sign language dictionary, a sign language-to-sign language translator, and a sign language-based Wiki.