I did this presentation on how to integrate Google Apps in APEX throughout Europe (Netherlands, United Kingdom, Slovenia, Croatia, Latvia, Germany) and even at kScope (Miami).
The guys at Riga DEV days (Latvia) made a complete video for you to enjoy
Richard Martens has been involved in information technology for more than 20 years. He started as a web developer using the Oracle database as no more than data storage. Richard has been responsible for major European multilingual websites and has been working with the Oracle database since 2000. During those years, he developed himself using a multitude of technologies and specialized in PL/SQL and Oracle APEX. With APEX, he combines the things he loves most: the Oracle database and web technologies.