Here is a list of resources, either books, websites, magazines, that I use and can be of interest to you if you have similar interests.
Tutorials to get started with Oracle Forms
Holowczak’s Tutorial: http://cisnet.baruch.cuny.edu/holowczak/oracle/dev2k/9ids/
University of Maryland R. H Smith course: http://www.smith.umd.edu/dit/oracle/formstutorial.html
Francois Degrelle’s PJC/Javabeans depot: http://forms.pjc.bean.over-blog.com/
Ronald Grant blog: http://www.groundside.com/blog/GrantRonald.php
Wilfred’s oratransplant blog: http://www.oratransplant.nl/