DOAG e.V. is a society focused on sharing experiences around Oracle products. They also organize big events like the annual DOAG conference, JavaLand or APEX Connect. Being an active member and representative, I get the chance to bring ideas of the DOAG community into reality. Amongst many initiatives from the group of people that represents the development community within DOAG e.V., I would like to point out one that is beneficial to the whole Oracle community, but rarely known. In 2015, it was decided to make ALL content of DOAG freely available for download. No registration hassle, no fee, but literally thousands of presentations of all DOAG events waiting to be consumed by you!
Here is the link to start exploring this treasure:
So, for instance, if you are looking for all development presentations during DOAG Conference 2015, navigate to /pub/docs/Konferenz/2015/vortraege/Development.
Have fun with it!