'digital crack for women' is a pretty big, profitable market. I am glad you like other products, but as a fan of pinterest, I like what they are doing and the service they provide. I only have facebook, twitter, Linked and tumblr-- for the longest time I only had facebook, because keeping track of all my social presence is a nightmare. But the last thing I need is to aggregate all that presence is one place. I use each avenue for different things, and for a difference audience.