What four memes are on the Board 8 Memes Mount Rushmore?

Board 8

There goes bracket
GfNW
Jay Solano
Ertyu

Oh my goodness - after all these years, I just now realized that ertyu is a series of letters in a row on the keyboard. He's even more glorious than i remembered...
Yay - azuarc is the guru champion of awesomeness.