The way to find interesting things to read online is by discovering interesting people, and then going through everything they have ever written or said. Then finding people they have written about/linked to, and reading everything by these new people.
A few days ago I discovered a talk by Peter Fenton on Youtube. After that I searched for all his talks Youtube, and interviews on Google Podcast.
I am currently reading all editions of Firehose.
This is quite similar to my Twitter workflow.
Twitter workflow: Go to the profile of someone I admire -> Read their latest tweets -> Go through their ‘Likes’ section -> Discover interesting tweets by other people -> Go to the profile of these new people -> Read their tweets -> Go to tweets they have liked -> Repeat.