Uber did it again. If in summer, they used their app to deliver ice-cream-on-demand, last weekend they tried to activate users delivering christmas-trees-on-demand.
Once you add the KimonoLabs add-on to your browser, it shows a figure with the number of current APIs created by other users in the page you are currently browsing.
Betabrand knows how important can be to have as many data as possible of a potential customer. When they invite to you signup for future offers, they give you two options: either get a 10% discount in your next purchase if you just enter your email, or get a 20% OFF if you sign-up with your Facebook account instead.