A question about author blurbs

At the moment, I'm in the process of requesting author blurbs for my upcoming Aphrodisia release, DARKEST FIRE–at the request of my editor. Clearly, the folks at Kensington believe blurbs by authors help a book sell. To clarify, when I say "blurb" I"m talking about those short, punchy promo-ish, "Hot, saucy, fun! This book is great! by Jane Bestseller" lines you see highlighted on newbie/midlist authors' book covers.

I'm not sure they do much. Maybe I've been reading too many blogs online?

On o...