Yesterday Google announced that their bookmarks can now be shared. So far, so social media. What’s interesting about it is the motivating scenario:
Sharing lists can help you collaborate with your friends on common interests or activities. Let’s say you’re planning a group trip to Paris. With a list, everyone can contribute useful links and resources, such as packing lists, hotel links, flight information and attractions.
The key characteristic that distinguishes this scenario from typical “ask (or mine) your social network” types of search is that here you and your friends have a shared information need, and you are all contributing your efforts and expertise toward that goal. The system doesn’t have to figure out that you all are planning a trip to Paris together — that would be a hard inference to make. Rather, you tell it, explicitly, what you’re doing, and it helps you work on that information need together.