Diigo

---

title: "Diigo" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["social-bookmarking-websites", "note-taking-software", "internet-services-supporting-openid", "web-annotation"] description: "Social bookmarking website" topic_path: "general/social-bookmarking-websites" source: "https://en.wikipedia.org/wiki/Diigo" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Social bookmarking website ::

::data[format=table title="Infobox website"]

Field	Value
name	Diigo
logo	Logo Diigo.svg
url
commercial	Yes
type	Social Annotations, Highlighting and Social Bookmarking
launch_date	July 4, 2006
current_status	Active
::

| name = Diigo | favicon = | logo = Logo Diigo.svg | screenshot = | caption = | url = | commercial = Yes | type = Social Annotations, Highlighting and Social Bookmarking | registration = | owner = | author = | launch_date = July 4, 2006 | current_status = Active | revenue =

Diigo is a social bookmarking website that allows signed-up users to bookmark and tag Web pages. Additionally, it allows users to highlight any part of a webpage and attach sticky notes to specific highlights or to a whole page. These annotations can be kept private, shared with a group within Diigo, or be forwarded to someone else via a special link. The name "Diigo" is an acronym from "Digest of Internet Information, Groups and Other stuff".

Premium account holders can perform full-text searches of cached copies of bookmarks. A full-text search also searches page URLs, tags and annotations. This means that premium account holders can choose to omit tags that already appear in the text of a page to be bookmarked (although text inside images cannot be searched).

The launch of Diigo met with mixed responses, from the unimpressed to the enthusiastic. Diigo beta was listed as one of the top ten research tools by CNET in 2006.

Outside the website, Diigo's graphical user interface includes an optional bookmarklet, or a customizable toolbar, with various search capabilities. Highlight is enabled by a menu, that can either appear automatically when content is selected, or be embedded into the context menu.

In March 2009, Diigo acquired web-clipping service Furl from Looksmart for an undisclosed price.

The site also has an extension available on the Chrome Web Store.

On October 25, 2012, the diigo.com domain was hijacked. An unknown attacker changed the authoritative nameserver records ("NS records") for DNS zone DIIGO.COM, temporarily giving control to nameservers at AFRAID.ORG, and causing traffic to be misdirected.

Mobile apps for Diigo are available on iOS, Android and Windows Phone 7.

References

References

1. (2009-09-24). "Diigo V4: Research ~ annotate, archive, organize". Diigo.
2. "Diigo help".
3. "Full text search".
4. (24 July 2006). "Diigo Launches, Nobody Cares".
5. "Diigo Offers "Social Annotation" Tool - Search Engine Watch".
6. Wauters, Robin. (9 March 2009). "Diigo Buys Web Page Clipping Service Furl Away From LookSmart".
7. "LookSmart Hands over Social Bookmarking Service Furl to Diigo - ReadWriteWeb".
8. "Archived copy".
9. "Emergency Announcement".
10. [https://twitter.com/diigo/status/261228053961797633 ]{{dead link. (August 2016)
11. "diigo.com historical whois information".
12. "Diigo for Android".

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::