For years, I have been interested in Mississippi regiments and battles. I've been reading and studying about the battles in North Mississippi and West Tennessee which usually involves cavalry operations so I've learned some about them. I had to learn some about Tennessee regiments as well. I have a few resources to help me understand the organizations of these cavalry units. I don't get into the details of they type of weapons they used. I am interested in uniforms which were not so "uniform".
I'm like BDTex---I like to research soldiers' service records and the names on graves.
Pretty much the same. I also have access to Newspapers.com.
Otherwise, I research the 22nd Kentucky Volunteer Infantry and it's men. I have a Virtual Cemetery of over 300 names from the 22nd Ky. I also use Archive.org quite a bit and fairly good at Civil War records on Ancestry.