Spider rigging is a pole set up, You set rod holders up in the front of the boat that hold 10' to 14' fishing poles spread out kind of like spider legs, thats why they call it spider rigging. Lots of people set the front of the boat up for two seats side by side so both you and a partner can fish. ( goggle spider rigging on the web) With the poles spread out like this you can cover a wide area of water as you are trolling over the fish. Read the post about tactics for different line set ups.