Ask HN: Archive of well-designed PSDs?

http://365psd.com/

There are a few, including 365psd, DesignMoo,and PremiumPixel. I've found myself glancing at them a couple times, but when it came to putting that design into web design, it became a useless service for me (now I rarely make a PSD).

I don't know of one. It would compete with "stock" image services that sell PSDs, AIs, etc. If you can find 10k+ free, "worth owning" PSDs that people give you royalty-free, the right person could definitely make some money with it.