I guess if you're an obsessed fan of Marmalade Boy like me, you would be crazy enough to buy anything assosciated with it. Anyway, because I've always been a card collector, Marmalade Boy cards was number 1 on my shopping list!
The cards listed here are from my personal collection, and of course,  I've spent a fortune of them! ^_^

Produced By Amada

PP set 1  Scans [Descriptions]
PP set 2 [Descriptions]
Hero Collection [Descriptions & Information]
Bromide Cards. [Descriptions]
 

Produced by Bandai

Caadass Station Cards/Vending machines.

Set 1.  [Descriptions]
Set 2.  [Descriptions]
Set 3.  [Descriptions]
Set 4.  [Descriptions]

For Scans of these 4 sets, go here