I see these terms everyday in every lecture, I do read stuff from wikipedia, follow lecture notes, study solved exercises. All in all I do have a rough idea about these, I know a little from everything, but the picture is not complete, far from complete, I would like to understand all of them and improve myself because in 2 weeks I will have an exam, is there a website which you can suggest, describing these very well? Animations would be great, I'm clueless from where shall I start and how do I close all these gaps :(
You did not posed any particular problems and asking for animations? I think that books are way better. We don't know what are your topics, but knowing you did all the studying and have two weeks so I suggest to:
Do the ELEC301x – Discrete Time Signals and Systems course from the Rice University. They do have a good part about design of digital filters, especially about differences between different topologies (including placement of zeros and poles), just watch.
Design few filters in MATLAB, do some filtering and try to understand their characteristics.
fvtoolis great, especially if you want to visualize anything you need.
Do the exams from past and if you feel confident then just go for a pint!
Read all the questions and answers on DSP SE regarding digital filters ;)