Sure, fashion search/bookmarking is a commodity - that's why those sites don't succeed.
I think discovery services are more nuanced than this and it's easier to understand the value they bring both to users and retailers, so we positioned ourselves as a "personal shopping engine." The goal was to shift users away from the Google search box towards a service geared towards shopping. I'm sure you can see value in that.
Hot company du jour is Pinterest... probably headed towards 3B pvs/month and recently closed a round of funding at $200-250M. Keep an eye on them if you think it's all still a commodity. It just depends on what lens you look through. Part of the challenge is putting aside one's cynicism and trying to positive about what your company _can_ be or _could_ be if people take it seriously.
