Have you heard of Thumb? This app is incredibly simple to use and consumer driven. You just upload a photo and ask a question, to fellow members to comment with text, and add thumbs up, thumbs down or neutral to rate the product, service or idea. Thumb creates serious engagement, with an average of 50-100 responses in minutes. There is everything to comment on from fake nails, exotic locations, products, relationships woes, hot bodies and religion, to name a few. When you rate and comment on an image, along with a question, you then accumulate votes and stars on your profile. Thumb is also on twitter, of course, however they don’t tweet much. Great for brands to get ‘real-time’ feedback, if you want to jump in. Cool app.