Youtube as a search engine - how i have changed my default in how i search for information

My behaviour in relation to searching and filtering information has started to change quite dramatically after many years doing the same thing. I wonder where they will lead, and how out information portals will change as behaviour changes.

So what do these changes look like..?

1. I now use Youtube as my default non work search engine. 
2. I now use mobile apps in isolation (eg train times) but i find them increasingly less useful in general online activity (eg comparing different travel methods etc), so i'm increasingly looking for cross pollination of different information in a single app.
3. I'm subscribe to Youtube channels like i subscribe to blogs on an RSS reader.
4. I use flipbook as my RSS reader and occasionally look at twitter on it (mainly for the better display of pics) 
5. I follow people and search on Slideshare. This is a bit like watching a film over watching a tv programme: you know someone's worked very hard on a slideshare presentation unlike some thrown together blog.
6. I use image search before text searching if i know it will have a lot of results (to help with the filtering process) especially if i know they'll be a lot of hits and i'm looking for things of good quality.
7. I access more and more websites via mobile and I now notice when a website has a good mobile page. 
8. I differentiate between durable information and disposable information (mainly this is the distinction between blogs and twitter) along the lines of Thinking Fast and Slow
9. The news that Siri could be our default search, therefore eliminating the need for separate apps cones as no surprise. I use it as my default text input device now.

As someone who has promised themselves they will never read another academic abstract, starting in niche information places feels like a good place to start

but the speed of the change in my behaviour has surprised me..