It'd be nice to see a more systematic review comparing the search engines head to head on the same set of queries or tasks. So far the reviews here seem pretty unscientific. Also, does anyone know if BOSS is now serving Bing rather than Yahoo results after the switchover? It would seem kind of bizarre for Yahoo to continue serving its own results just for this one property (unless they're serving stale results). In a…
I think he's stopped using BOSS altogether. Just Bing API, a few other API's that I've never heard of, and his own crawling.
Also, he does a lot of reordering of search results, so things meant to game Bing wouldn't be that effective.