adsensebooks.com I watched it for several days but it was registerred by somebody elso. I think that guy paid for some backorder service.
I am not sure. But I think many ppl are searching for adsense book/money/guide/tutorial etc every day. Unlike those searching for affiliates (like clickbank), ppl searching for adsense are more likely to buy so called adsense secrects. and i do not think many of them will "steal" your affiliate links (many ppl searching for clickbank stuffs DO replace your clickbank ID with theirs)