[dr_lew]

First of all, the search is not for books by Bill Ayers, although it will find those. It is for mentions of Bill Ayers in any book. Note of course that the author “Dreams ...” is listed as Barack Obama.

Then why does it show up? This appears to be some kind of a hack. The scroll bar on the right shows purported hits of “Bill Ayers” in the text. When you roll the cursor over them, they show some kind of commentary, not necessarily in sympathy with the putative author. These excerpts are not on the page which is supposed to contain them, so I don’t know how this came about. As I say, it certainly looks like a hack.

[dr_lew]

Here's an example of what I'm talking about. I guess these are hits on some book about Bill Ayers. Hey! The link is still showing "Dreams", but not the cross referenced hits anymore, so the book will probably drop off the hit list pretty soon, as well.

This particular hit is from "The unauthorized biography", and the others were of the same character, so I guess that's where they all came from. Still looks like a hack.

[neverdem]

Look at the URL from Lifson in comment# 21.

That terminal part, &btnG=Search+Books&tbm=bks&tbo=1
is some sort of ccommand to search books by Bill Ayers, IMHO, not any hacking.