networking two win 98 computers

I have two win 98 computers,I have a dsl connection and i am using the linksys etherfast cable/dsl router.I have no trouble getting them both to share the dsl connection, that is working great. My question is how do I get them to actually be networked together as to were they can share files,and printing? I want to have both of them in my network neigborhood.