Although Facebook isn’t working on a “Need” button, “Want” is definitely on their radar:
It’s kind of like the “like” button, but instead compiles a wish list of all the products you’re lusting after on the Internet and lets your pals (and ostensibly, the retailers selling the item) know.
The convenient part for shoppers and the attractive part for retailers? Once you’ve amassed your virtual treasure trove, the idea is you’d be able to click through and actually buy the products on that list.
The question for me, of course, is whether I’d have enough sense to limit my Wants to that which I can actually afford.