Information overload. There is now lots of information available online but there are only a few systems for prioritizing/sorting it. For example, if you are a

Information overload. There is now lots of information available online but there are only a few systems for prioritizing/sorting it. For example, if you are a software developer and you want to continually learn about new software development tools and technologies, you can talk to colleagues, you can read the front page of Hacker News or r/programming, you can follow people on Twitter and on their blogs; I would think there would be a lot more ways to do this (for example, things like Hacker News or r/programming with a much wider variety of ways of sorting the stories; more transparent and customizable social media 'feeds'; a wide variety of collaborative filtering websites like StumbleUpon tried to be; etc).