Internships abroad:
Accomodation: https://housinganywhere.com/
Tests: TOEFL / GRE / GMAT : http://iro.hr/hr/standardizirani-testovi/
TOEFL Starter Guide: https://www.discoverbusiness.us/resources/toefl/
Erasmus Intern https://erasmusintern.org/
LEO-NET http://leo-net.org/
Globalplacement http://globalplacement.com/
Protal Praxis http://www.praxisnetwork.eu/
http://internship-uk.com/default.asp
http://www.internshipinbrighton.com/
http://www.animafestexperience.com/internships/
Placement Slovakia (online prijava)
ESPA (European Student Placement Agency) UK
Doing an Internship Abroad: All you need to know