>I feel like if your entire product can be put out of business/duplicated overnight, there's little value in what you're doing. >I'm sure Quora will be fine; t

>I feel like if your entire product can be put out of business/duplicated overnight, there's little value in what you're doing. >I'm sure Quora will be fine; they've been around a little and have a community. Arent these statements a bit at odds? Anyways, I think the "little value" argument doesnt hold very well in the age of social sites, where the network effect is hugely important. Lots of people could create a half-assed twitter/facebook clone quickly, but that hardly means theres little value in those 2 companies. I mean look at LinkedIn - The product is pretty bad, but it has such strong network effects its not going anywhere soon (unless someone builds an app on top of facebook, IMO.)