Visa: 
Visa types and requirements: https://www.mfa.gr/en/visas/

Entry and residence requirements:
Ministry of Foreign Affairs: http://www.mfa.gr/en/
Visa Information: learn4good.com/...
 
Social insurance:
IKA Social Insurance Institute – Greece: ika.gr/...
 
Tax regulations:

Ministry of Economy and Finance: mnec.gr/...

Accommodation:
Hotels and Hostels: reservations.bookhostels.com/...

Country information:
Kwintessential - Doing Business in Greece: kwintessential.co.uk/...
Greece Culture: greeka.com/...
 
Further information:
Tourist information: gnto.gr/...

 

30 Years Erasmus