It will change the new trends and academic profiling systems (institutional or personal). Google Scholar Citations challenges other competitors  such as ResearcherID, Mendeley etc.

Google Scholar citations uses their own citation metrics which fetches data not only from journal articles, conference proceedings from publishers platforms, but also from institutional and digital repositories.

This service has been in limited release but now is open to everyone.

http://googlescholar.blogspot.com/2011/11/google-scholar-citations-open-to-all.html