Ask HN: What do you use to share your knowledge with others?

I share alot of my knowledge with others, but it's centred around certain subjects. So for example I have a number of friends with which I share information regards health, and then I have people that I share start-up information with. So I need to organise the content in terms of list. That said, I also need to be able to add in my own content that I construct as well. And it needs to be mobile friendly. Kippt seemed like the perfect solution. I loved the ability to be able to create my own entries within the list and to set different lists up and the bookmarklet was great.But they have no mobile app, their customer support seems to be non-existent, and the app has bugs that haven't been fixed in a long time. Further, the only privacy settings are public and private. I need more granular control than that, say permalinks or similar. I already use pocket which is great for reading later, but not quite so good at helping me to organise and share the knowledge. Tags alone aren't enough. I need lists. I've also tried Diigo -- UI is awful. I can't get my head around it. DotDotMe. Also looked promising, but seems to fail on whatever I try to import and there's no ability for me to create my own content entries. Only things I find on the web. Any suggestions?