This allows you to paste in a link and discuss the website, as well as gather materials for research. I'd like the ability to join many others who are learning

This allows you to paste in a link and discuss the website, as well as gather materials for research. I'd like the ability to join many others who are learning the same thing. I think we need a method of referring to sub-topics so others can join in on the conversation. So many answers and information is stuck in forums with a generic thread title. Information will only grow- how can we better self-categorize the content we create so others can find it?