Mendeley is a desktop and web program produced by Elsevier for managing and sharing research papers, discovering research data and collaborating online.

ResearchGate is the professional network for scientists and researchers.

Commercial social networking website for academics.

Search Engine for Scientific Publications

Social Science Research Network

Open source software that facilitates open collaboration in science research.

A free online service for academic social network analysis and mining.

ImpactStory is an open source, web-based tool that provides altmetrics.

OA repository for EU-funded data and publications.

Real science from real scientists, writers, communicators, artists & clinicians.