Quote: "Normally each link on a Google search page has an onmousedown script that sends a request to their servers telling them what you clicked on. It's an invasion of privacy and it slows down your connection. This kills off the bounce script."
From what I can tell, that script removes the onmousedown attribute. Looking through the source code on a search page, I see this:
onmousedown="return rwt(this,'','','','1','AFQjCNFHwcUnutkysqwR5Sfa9TF0ZK6DJA','eFPN4LjVYFEFYRjVe17-cA','0CC0QFjAA','','',event)"
But a real link is still present in the href attribute. By removing the mouse event, you get the direct link instead of it being hijacked by google.