Numerous institutions (museums, universities, institutes) as well as individual researchers have also participated in this project.

There are also guidelines regarding how amateur researchers can participate and gain approval for specific type of heritage exploration.

Well known researchers from Mexico and other countries have also participated.

Approximately 7,000 doctors, health care professionals, researchers, residency training programs, and students from all over the world participate.

Students, researchers and staff participate in international projects, including the Socrates programme.

In addition, several researchers participate in the research groups for shorter periods.

Nearly 7,000 researchers representing more than 100 countries throughout the developing and transition world have participated in this competition to date.

But Dr. Balfour and other researchers also participated in a much larger study of 900 children at 10 medical centers.

However, other researchers have emphasized a more participative approach, in which the researcher fully participates as a member of the online community.