Diigo Web Collector
Bookmark, Archive, Screenshot & Markup - All-In-One Web Collector, must-have research tool
The pitch, and what the numbers say
Diigo Web Collector - Capture and Annotate — Workflow · https://diigo.com
No revenue figure: see why on the full x-ray.
Why users leave
The free diagnosis shows the top complaint. The full brief has every cluster, the build ideas and the buyers.
Longtime users cannot log in; paid annual fee then domain parked; extension calls dead toolbars3.diigo.com API, losing highlights.
“I just paid the annual single user fee as I have done since 2019 yesterday, but now the domain name is showing as parked!!!”
What a challenger would build
Closest alternatives
Who is buying right now
2 buyer threads in the same market in the last 30 days, with links and excerpts in the full brief.
Full 1-star breakdown with verbatim quotes, the build blueprint and every live thread — on every product.
How to read this
Sources: the product's public listing and reviews, its published price, and public forum threads. Revenue is an estimate unless marked verified by the founder; the formula and its inputs are on the full x-ray. Complaints are grouped by a language model and each quote is a verbatim excerpt, linked to the original review. Build difficulty is a model's reading of the listing and the complaints, not a measurement. Figures are a snapshot of Oct 30, 2026. Corrections: corrections.