Dwarf Hamster Blog - This page has very good information about dwarf hamsters. It covers stuff about the three different types of dwarf hamsters- winter whites. Roborovski. Campbell's. You might be thinking "what about chinese ?" In the article it says how they are not related to any of the other dwarfs but are mistaken as dwarfs becouse of their size. It then goes into more detail about each and some other stuff. A good thing to read.