It ranges from a non adoption of Web 2.0 technologies to a low level of uptake for OA journals which enable RSS/ATOM applications (e.g. the SciELO electronic library and a fair number of journals adopting the PKP OJS software), to a medium/high level of adoption as in the case of OA journals and platforms which incorporate different sharing tools or set up Facebook pages and Twitter accounts to outreach social networking and microblogging users (e.g. the Redalyc platform, BioMed Central), to a high level of adoption of Web 2.0 tools i.e. in the case of those OA journals which implement inherently Web 2.0 technologies