Bearish opinion about spun.com:

"Correction: SecondSpin.com actually predates Spun.com in being the first "buyback" site."

Bullish opinion about Alibris:

"This company has made a remarketable business in the shadow of Amazon.com"

Bearish opinion about Bookswim:

"Its easier/quicker to view a DVD than a Book, plus its cheaper to ship - challenging business model"

Bearish opinion about spun.com:

"I actually like Spun - they were the first, but they primarily only offer credit, not cash."

Bearish opinion about Gazelle:

"Unknown why they changed from the great name of Second Rotation, plus"