The reason a site was worth saving is the part you lose fastest. Note what it actually did — the pricing model, the hero line, the checkout flow, the objection it handled — and the note stays with the link. Six months later the board tells you what you were looking for, not just where you were looking.
Scheduling, analytics, design, outreach, the SEO checker you trust. Glue each one to its own page so you can compare them properly instead of reopening twelve tabs from memory. When the tooling changes, the board is the shortlist you already built.
Add a competitor’s new pricing page to the board you already built and the whole set updates with it. The feed learns which sources you keep coming back to, so the next one worth watching surfaces on its own.
A competitor teardown. A shelf of pricing pages. A reference set of the campaign sites you admire. Subglublers let you nest one collection inside another, so a category holds its own sub-categories without losing the overview.
Every Glubler is public unless you close it. Follow the marketers whose taste you trust and the collections they build land in your feed — whole teardowns and tool shelves, ready to borrow the approach from.