Links:

The Third Wheel has members of:
The Great Clearing Off(political punk)
and Mother Courage (now split, philly area peace punk)
and Kettle Rebellion (catchy celtic/punk/folk rock)
Some Influences:
Red Monkey
Sleater Kinney
Operation Cliff Clavin
The Weakerthans
Citizen Fish/Subhumans
Jawbreaker
Philly has a bunch of bass/drums/singing bands:

Eulogy
Captain Crash
Myles of Destruction
Northern Liberties

Other friends and local bands to check out:

The Sound Of Failure
Fire Down Below
Kill The Man Who Questions

this is the craziest thing I've ever seen:
weeee!