Bit of a numpty question about photo-hosting - For those who use hosting websites heavily, do you treat it as a back-up, or even the primary storage place for your pictures? Is the expectation that all your pictures on flickr or wherever are there on some sort of permanent basis?
I only use flickr sporadically, so don't really know the mindset of piling 1000s of pics onto it. Do you bother with a separate storage drive or is PC + web enough for you?

