I have been a passive consumer of the internet for many years. Unfortunately I don't remember most of the things I read online, nor do I remember most of the books I read.
I've seen a change though.
Ever since I started writing about my learnings here on 200WAD and on my blog, I found myself remembering most of the stories I wrote.
This is exactly what Richard Feynman said about learning. If you want to learn a subject, read about it and then teach it like you were teaching a toddler.
When you can explain a concept from beginning to the end, you're forced to learn the concept at a deeper level. And if you notice you're struggling to explain in some parts, that's when you know you have a gap in the knowledge.
I experienced this as well. Whenever I tried to write about my learnings in a logical format, I would hit a roadblock not knowing how to explain. I would then have to go back and re-read the materials.
I knew about this technique from Feynman a while ago, I wished I had apply it sooner.
Same goes with other areas of life. There are lots of people giving advice through books, articles, podcasts etc, we probably heard all of the advice we ever need, if only we follow through.
I'm making it a point this year to balance the things I read (consume) and the things I write/make (produce).