1. Crisis in scholarly journal pricing Bill Hooker, April 2009. Data sources: Library Journal Annual Serials Price Surveys, Association of Research Libraries, US Dept. of Labor

2. LinkedIn http://www.linkedin.com

5. Researchgate http://www.researchgate.net/

8. Google Scholar Citation Service http://scholar.google.com/citations

13. Google Scholar Citation Service

15. ResearcherID http://www.researcherid.com

17. Academia http://www.academia.edu/

18. ORCID (Open Researcher & Contributor ID) http://orcid.org/

19. Scopus Authors ID http://www.scopus.com/authid/detail.url?authorId=70051977

20. iamResearcher http://www.iamresearcher.com

21. iAMscientist http://www.iamscientist.com

22. Mendeley http://www.mendeley.com

23. Biomedexperts http://www.biomedexperts.com/

24. Pivot http://pivot.cos.com

25. Community Academic Profiles – CAP http://med.stanford.edu/profiles/

26. Elsevier's SciVal Experts http://www.info.scival.com/experts

27. Life Science Network http://www.lifescience.net