The second type of list this article mentions, social lists so to speak, is definitely valuable to users and probably isn&#x27;t receiving the specific attention it deserves.  Foursquare as a &quot;public itinerary&quot; for a trip through select art galleries in NYC is a great example.  Informal, public education could also be orchestrated with these &quot;social lists&quot;;  reading material &#x2F; exercises listed out in a syllabus and shared among interested parties.<p>Something that I think is pretty silly is the novelization of the fact that there are not many &quot;single user list apps&quot; that have transcended themselves and become &quot;social &#x2F; public list apps&quot;.  I think that&#x27;s because a whole heck of a lot of people will write lists on platforms which are not list-centric, ie: a physical notepad, text messages &#x2F; emails sent to yourself, nodepad smartphone apps, or even just notes written on your freaking forearm in sharpie!...<p>Lists are an interesting topic though, and when you think about it, an enormous portion of the internet really only functions as a list delivery system.  Lists of popular links (Reddit, hackernews), lists of friend&#x27;s pictures (Instagram),  lists of friend&#x27;s life updates (Facebook, Twitter et.al), lists of categorized media (Pintrest, Tumblr), lists of queried results (google, duckduckgo, search et.al)...<p>But I gotta say that lists as an integral motif of IT is a really cool concept.