Searching for ethernet on breadbord tutorial

I found some arduino on breadboard tutorials, but can't find an ethernet on breadboard tutorial to ad ethernet to my arduino

I don't think the Wiznet W5100 module or the Ethernet jack come in DIP form. You will need breadboard-compatible breakout boards for both of those if you want to mount them on a breadboard.

An alternative would be to wire an Ethernet Shield to your breadboard Arduino.