Here’s a tongue-in-cheek idea. With all the talk about the dangers of location-based services, I started to wonder: People share their thoughts (foursquare, Google Buzz (GOOG), brightkite), reviews (Yelp), and photos (Flickr) to the world with a stalker-friendly geotag. What else could they share?
How about their mood?
Remember a time when social networks were full of “How are you feeling today” icons and notes? Some people loved those mood icons. Some still do. I think MySpace (NWS) and LiveJournal still have them, in fact.
So how about sharing how you are feeling, exactly when you are feeling it, wherever you are feeling it? Maybe you could even take a picture of your face to reflect that emotion. Think of it as a real-time geotagged emotion.
Friends could follow your mood throughout the day as you travel through Machu Picchu, Tokyo, or a local softball game. Researchers could look into whether or not riding the bus dampens people’s moods. Stalkers could follow you around until you’re feeling low and vulnerable, then approach you and offer some candy.
I’m feeling pretty cheerful right now. Oh how I wish I could geotag this emotion in real-time to the world.