Laminate also known as celloglaze comes in Gloss and Matte. Both are a clear coating that protects the printing, and gives your business cards a superior feel. The choice of laminate is purely a personal one.
Gloss laminate is shiny and reflective, making colours appear vibrant. Gloss laminate is also difficult to write on with a pen due to the shiny finish.
Matte laminate is smooth and silky, like satin. Matte laminate is much easier to write on with a pen.
You can also choose to have no laminate on your business cards. This leaves the bare card without a coating, and a low-sheen feel suitable for writing on.