I open a new "learn" section on the Website today . It needs
contribution to be less empty. So take time to add your article or
documents to it with a PR.
The ecosystem section  is also waiting for contribution to add framework
based or supporting CDI (Tamaya, Infinispan...);
I also published a CDI user guide based on Weld documentation (all the Weld
reference and specificities were removed), which can probably be
improved. Source of this doc can be found here 
Thanks for your help.