Go out exit 8 of Hongik Station, take an immediate right. Turn left @ the coffee shop onto a wide street. Take a right at the CU corner shop on the next block, you'll see Strange Fruit four doors down on the left hand side (basement bar).
A tiny / intimate venue in Hongdae that regularly has great bands playing there. The owner is a great guy and music lover. When there are no shows on, its a great place to hang out and have a beer (you can be sure there will be great music playing).