1) ACT = http://www.actstudent.org/
2) SAT = https://sat.collegeboard.org/
3) TOEFL IBT = https://www.ets.org/toefl/ibt
4) EDUCATION USA = https://www.educationusa.info/
5) STUDY USA = http://studyusa.com/
6) Simulated tests for ENEM = a) http://vestibular.brasilescola.com/enem/simulado/
b) http://guiadoestudante.abril.com.br/simulado-enem/
c) http://vestibular.mundoeducacao.com/enem/simulado/
7) Vestibular = http://vestibular.brasilescola.com/
8) MEC – Vestibular, recognized higher education courses and scholarships = http://mecsrv125.mec.gov.br
9) CAPES = Scholarships – MEC = http://www.capes.gov.br/
10) Science Without Fronteers = http://www.cienciasemfronteiras.gov.br