Below is a list of most-recommended sites which provides tools to researchers, authors and science professionals who want to find global experts, funding opportunities, and author citations. This section will be updated periodically.

ISIHighlyCited.com
http://isihighlycited.com
Expert gateway to the most highly influential scientists and scholars worldwide.
This freely accessible Web site gives research professionals working in a variety of occupations an invaluable tool to identify individuals, departments and laboratories that have made fundamental contributions to the advancement of science and technology in recent decades.

Community of Science
http://www.cos.com
Community of Science (COS) is the leading global resource for hard-to-find information critical to scientific research and other projects across all disciplines. We aggregate valuable information so you spend less precious time and money searching for the information you need, leaving you more time and money for your projects.

Thomson Scientific
http://scientific.thomson.com
Through a variety of multidisciplinary products, you can discover current and retrospective information from approximately 8,500 of the globe's leading, peer-reviewed journals. These publications represent about 1.3 million articles and 30-35 million citations a year.