Diigo
{{Short description|Social bookmarking website}}
{{Infobox website
| name = Diigo
| favicon =
| logo = Logo Diigo.svg
| screenshot =
| caption =
| url = {{URL|www.diigo.com}}
| commercial = Yes
| type = Social Annotations, Highlighting and Social Bookmarking
| registration =
| owner =
| author =
| launch_date = July 4, 2006
| current_status = Active
| revenue =
}}
Diigo {{IPAc-en|ˈ|d|iː|ɡ|oʊ}}{{cite video | date = 2009-09-24 | title = Diigo V4: Research ~ annotate, archive, organize | url = http://vimeo.com/6747389 | format = flash |medium = Presentation | publisher = Diigo | time = 0:00}} 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".{{cite web|url=http://www.diigo.com/help/about|title=Diigo help|website=Diigo.com|accessdate=2016-08-11}}
Premium account holders can perform full-text searches of cached copies of bookmarks. A full-text search also searches page URLs, tags and annotations.{{cite web|url=http://help.diigo.com/premium-features/full-text-search|title=Full text search |website=Help.diigo.com|accessdate=28 October 2010}} 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{{cite web|url=http://mashable.com/2006/07/24/diigo-launches-nobody-cares/|title=Diigo Launches, Nobody Cares|website=Mashable.com|date=24 July 2006 |accessdate=2016-08-11}} to the enthusiastic.{{cite web|url=http://searchenginewatch.com/showPage.html?page=3622969|title=Diigo Offers "Social Annotation" Tool - Search Engine Watch|website=Searchenginewatch.com|accessdate=2016-08-11|url-status=dead|archiveurl=https://web.archive.org/web/20081010215708/http://searchenginewatch.com/showPage.html?page=3622969|archivedate=2008-10-10}} 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.{{cite web|url=https://techcrunch.com/2009/03/09/diigo-buys-web-page-clipping-service-furl-away-from-looksmart/|title=Diigo Buys Web Page Clipping Service Furl Away From LookSmart|first=Robin|last=Wauters|website=Social.techcrunch.com|date=9 March 2009 |accessdate=2016-08-11}}{{cite web |url=http://www.readwriteweb.com/archives/diigo_acquires_furl.php |title=LookSmart Hands over Social Bookmarking Service Furl to Diigo - ReadWriteWeb |accessdate=2009-03-09 |url-status=dead |archiveurl=https://web.archive.org/web/20090312032353/http://www.readwriteweb.com/archives/diigo_acquires_furl.php |archivedate=2009-03-12 }}
The site also has an extension available on the Chrome Web Store.{{cite web|url=https://chrome.google.com/webstore/detail/oojbgadfejifecebmdnhhkbhdjaphole |title=Archived copy |accessdate=2011-02-13 |url-status=dead |archiveurl=https://web.archive.org/web/20110414100633/https://chrome.google.com/webstore/detail/oojbgadfejifecebmdnhhkbhdjaphole |archivedate=2011-04-14 }}
On October 25, 2012, the diigo.com domain was hijacked.{{cite web |url=http://www.diigo.net/about/domain |title=Emergency Announcement |accessdate=2012-10-25 |url-status=dead |archiveurl=https://web.archive.org/web/20121028162439/http://www.diigo.net/about/domain |archivedate=2012-10-28 }}[https://twitter.com/diigo/status/261228053961797633 ]{{dead link|date=August 2016}} 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.{{cite web|url=http://www.who.is/domain-history/diigo.com|title=diigo.com historical whois information|website=Who.is|accessdate=2016-08-11}}
Mobile apps for Diigo are available on iOS, Android{{cite web|url=http://www.androidblip.com/android-apps/com-diigo-android-8187.html|title=Diigo for Android|website=Androidblip.com|accessdate=2016-08-11}} and Windows Phone 7.