domain One and two-word .infos (w/ ad value?)

[stever]

I picked up this selection while going through an .info phase for possible development. From domain name value alone any you would keep? Any you would drop? Any valuation help appreciated - these were some of my first forays into domaining...

catalogprinting.info
contaminants.info
cystoscopy.info
excavations.info
eyelifts.info
financebroker.info
pasteurization.info
permanentink.info
serums.info
spachemicals.info
stereospeaker.info
stereospeakers.info
tanningequipment.info
vetting.info