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Pearltrees refers to itself as "a place for your interests".〔(【引用サイトリンク】url=http://pearltrees.com )〕 Functionally the product is a visual and collaborative curation tool that allows users to organize, explore and share any URL they find online as well as to upload personal photos, files and notes. The product features a unique visual interface〔(【引用サイトリンク】url=http://education-english.net/pearltrees-visual-content-curating.html )〕 that allows users to drag and organize collected URLs, and other digital objects.〔Pearltrees product FAQ (What is a pearl? )〕 that themselves can be further organized into collections and sub-collections,〔Pearltrees product FAQ (What are Pearltrees )〕 (URLs). Users of the product can also engage in social/collaborative curation using a feature called ''Pearltrees Teams''.〔Pearltrees product FAQ (What are Pearltrees Teams? )〕 Pearltrees claims to be among the first companies to provide an exposed interest graph.〔O'Dell Jolie, (Pearltrees Funding to Allow Company to Further Develop its Interest Graph ) Venturebeat, February 13, 2012〕 The company's mission is to help users "Democratize Organization of Knowledge"〔About Pearltrees, Pearltrees website (Pearltrees Mission: Cultivate Your Interests ), Retrieved May 13, 2012〕 As part of the product's social features, Pearltrees users can synchronize their accounts with both Twitter and Facebook. This bi-directional functionality supports the collection of new pearls each time a link is shared or tweeted. New links added to user accounts and new collections created by users can also be broadcast via a user's Twitter and Facebook accounts if users have enabled this feature. Users can also embed a collection into most CMS products including WordPress blogs, Drupal websites, Typepad blogs and others.〔Pearltrees Blog, (Embed a Living Pearltree into your Website ) Retrieved May 13, 2012〕 Pearltrees was founded by Patrice Lamothe, CEO, Alain Cohen, CTO, Nicolas Cynober, Technical Director, Samuel Tissier, Ergonomy/UI〔(【引用サイトリンク】title=Crunchbase Profile )〕 and Francois Rocaboy, CMO. == History == Development of Pearltrees began in 2007. An alpha was launched in March 2009 and made its first significant public appearance (in open beta) At LeWeb in December 2009. According to CEO and Founder Patrice Lamothe he laid out the rationalization for this company in his blog post, "The Web's Third Frontier" where he proposed that the next logical phase of the Internet was the democratization of the organization of the web, after the successive advents of the access to content and the democratization of content creation. At the 2010 Web2.0 Expo in San Francisco, Pearltrees introduced the ability to "super-embed" a pearltree into another website. Pearltrees that have been embedded in other sites are updated dynamically whenever the original pearltree has been changed within the Pearltrees website. In December 2010 Pearltrees made their initial foray into collaborative curation with the launch of a new "team" feature. The team feature allows users of the product to request to team-up on pearltrees that have already been curated by other users of the product. Once added to a team these additional curators are then able to add, remove and reorganize the content of that and any sub-pearltrees as well as to add new members to the team. In October 2011 Pearltrees introduced Pearltrees for iPad. The product was well received by a number of technology bloggers including Marshall Kirkpatrick of ReadWriteWeb and Martin Bryant of TheNextWeb As of May 2012, Pearltrees for iPad has maintained an overall 4.5 star rating in Apple's iPad App Store.〔(【引用サイトリンク】url=http://itunes.apple.com/us/app/pearltrees/id463462134?mt=8 )〕 In July 2012 Pearltrees launched their iPhone app. Like its predecessor product for the iPad, the app was well received by the media and also received praise from users. As a result, the application currently enjoys a 4.5 star rating in Apple's App Store 〔(【引用サイトリンク】title=Pearltrees in App Store )〕 In addition to curating links, Pearltrees 0.9.3 version also allows contributors to add photos and notes to their accounts. The product also features a new "offline-mode" that supports the browsing of all collected content regardless of whether the phone is connected to a network or not. On October 31, 2012, Pearltrees simultaneously launched a 1.0 version and a premium membership product called Pearltrees Premium. The 1.0 version of Pearltrees features several upgrades to the web interface, most visibly to the way content is displayed; a new format the company calls "the big pearl window". Better congruence of the application across platforms is another stated improvement of the Pearltrees 1.0 experience The launch of Pearltrees Premium represents the company's first efforts to monetize their product. The core benefit of a premium membership is the ability to keep all or a portion of an account completely private or to share it only with a few selected collaborators. Premium accounts can also be protected with a PIN on iOS devices. The company released their first (Android ) version of Pearltrees〔https://play.google.com/store/apps/details?id=com.pearltrees.android.prod〕 on July 9, 2013. The new app lets users collect, organize, share and discover content from 98.6% of the current Android platform (every version except Eclair) and works on approximately 2500 of the 3400 devices that run on the Android OS. The Android version also leverages the share-intents capability built into the Android platform, allowing users to create pearls from content within other Android apps. The app was named an app of the week by Gizmodo the same week the product launched. Support for uploading and accessing files from any device was added to the product in an update released on the web and the (GooglePlayStore )〔(【引用サイトリンク】url=https://play.google.com/store/apps/details?id=com.pearltrees.android.prod )〕 on November 21, 2013. The latest version of Pearltrees allows users to upload and organize personal files of any type and organize them in conjunction with URL's, notes and photos. The update also added file storage limits specific to each of four account types as follows: Free accounts give users 250 meg of storage, Personal accounts 5Gig, Advanced accounts 25Gig and Professional accounts 100Gig. Pearltrees introduced Pearltrees 2.0 on May 22, 2014. The 2.0 version of Pearltrees features a new interface the company calls the "dynamic grid". The company also announced their move away from Flash to HTML 5 as well as major updates to the company's iOS and Android apps. The revised product features extended drag and drop capabilities as well as new options to share content including to Reddit, Tumblr and LinkedIn in addition to the product's existing sharing capabilities to Twitter, Facebook and via email and embeds.〔〔〔〔 The release of Pearltrees 2.0 was controversial with many users over the elimination of the "mind mapping" features that where a central theme to Pearltrees 1.0. In Pearltrees 1.0 users could build and collaborate their links in freeform hierarchies displayed on screen as a forking "tree" of links and content elements. While users can still organize their content in containers they are no longer displayed as a "tree" and the complex abstraction of relationships, simplified by the mind maps, is not supported except in a 'check back' display mode. The iPad app does not support the "check back" to Pearl 1.0 hierarchies. The company has made no clear statement if the mind-mapping interface will be supported going forward but has stated clearly that their business model is focused on collaboration of web contact and it was felt that the new interface made Pearltrees more accessible to a wider base of users who may have been previously turned off by the added complexity of mind mapping their content. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pearltrees」の詳細全文を読む スポンサード リンク
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