Need to set affiliate links in sidebar for each category
I'm thinking there has go to be an easy way to do this. I would like to set different affiliate links in the sidebar for each category. For example if someone clicks are arts and crafts category, while viewing it there will be affiliate links in the sidebar about woodworking, art, etc. but if their looking in the auto category then there will be affiliate links in the sidebar about great deals on cars (or something lol) I know customizing it will be time consuming as I will have to find affiliates for each category (this is fine) I just wanna know how to go about it.