When I started learning OpenGL, I had problems keeping all the terminology straight. Not knowing the terminology delayed my understanding on OpenGL. As I got deeper with OpenGL, I started realizing that there were holes in my knowledge. One day I decided to go back and reread the OpenGL Super Bible and get the terminology straight.
I also had problems remembering the steps necessary to make OpenGL work. As you know, OpenGL is a state machine. If you mix up the steps, nothing may show up on the display. I wished there were some OpenGL cheat sheets to help remember the steps required in OpenGL.
During my week off from work, I came up with two ways to help you in case you are having the above issues. I created an OpenGL Terminology page and an OpenGL Code Snippet page. These pages contains the most important OpenGL terminology and code snippets. I hope you find them useful. I plan to update these pages on a regular basis. So make sure to sign up to my newsletter to get the latest updates.