Heyday is the product I wish I could have created. I have long-sought a tool to effeciently capture the various topics I am researching. Other note-taking tools require a lot of effort (tags, manually adding notes or clips, copy-pasting URLs, etc). Heyday just works. It passively collects and organizes the topics I am researching so I can quickly go back and find what I need, when I need it.
I highly recommend it for anyone who has 100+ browser tabs open, is drowning in sticky notes (digital or otherwise), or needs to keep track of research information over time.
