I have also struggled for a long time to get what I want out of existing personal knowledgebase solutions, despite loving many individual elements of the products that are already out there like Evernote, Workflowy and Dropbox/.txt files etc. This pain was particularly acute in college while drinking from the firehose of information, and not having a tight solution, such that years on so much value was simply lost and forgotten. I have been building the product I wished I had - Naked Knowledge. It would be great to get interested parties' feedback. You can follow us and sign up for the beta here if you like: https://nakedknowledge.com