Research notes is in beta. LPH can tell you more about it. It's his project (of some 15 years). I think he's off working on it right now.
LPH doesn't have the one page I like to visit linked. Try this one. It was the main entrance but he was playing with getting the support forums added to it.
Glad you are here. Research Notes is a way to compile notes after reading websites. The beta is working: submission and search. None of the enhancements work. The first two developers couldn't get it working the way I wanted. Currently Caspio is the database - instead of a MySQL database on this server. Someone from Caspio is to help with the next step - but - we keep missing each other because school started and my hours are long during the day. It'll probably be a few months before we can get together. The next step for me is to just add websites I visit as well as their feed URL. I'll also add in articles which catch my attention. You are right that it is not in the navigation menu. For now, it's in the notice at the top of the page. Maybe you dismissed that notice.