StumbleUpon :
StumbleUpon is a discovery engine (a form of web search engine) that finds and recommends web content to its users. Its features allow users to discover and rate Web pages, photos and videos that are personalized to their tastes and interests using peer-sourcing and social-networking principles.
Toolbar versions exist for Firefox, Google Chrome, Opera, Internet Explorer and Safari. StumbleUpon also works with some independent Mozilla-based browsers.
Native mobile StumbleUpon apps exist for Windows, iOS,Android, and the Amazon Appstore.[
StumbleUpon was founded in November 2002 by Garrett Camp, Geoff Smith, Justin LaFrance and Eric Boyd during Garrett's time in post-graduate school in Calgary, Canada. The idea of creating a company was established before the content: of the five or six ideas for products, StumbleUpon was chosen. Garrett describes in a BBC interview the moment for him in which he felt the company had really taken off: "When we passed the half a million mark (in registered users), it seemed more real."
The popularity of the software attracted Silicon Valley investor Brad O'Neill to take notice of the company and assist with a move to San Francisco, as well as bringing in subsequent fund-raising totaling $1.2 million from other angel investors including Ram Shriram (Google), Mitch Kapor (Mozilla Foundation), First Round Capital and Ron Conway. Garrett Camp and Geoff Smith now reside in San Francisco, where StumbleUpon is headquartered.
StumbleUpon was owned by eBay from May 2007, when it was acquired for $75 million[9] until April 2009, when Garrett Camp, Geoff Smith and several investors bought it back.[10] StumbleUpon is now an independent, investor-backed startup once again, with offices in San Francisco and New York City.
In September 2012, StumbleUpon released an update for its iOS app that brought the new feature "StumbleDNA," which aggregates content that is recommended for you, trending content as well as a section where you can view the activity of your StumbleUpon connections.[11] On September 25, 2012, StumbleUpon released a redesign of its website in beta, and extended it to all users on October 24.[12]
On January 16, 2013, StumbleUpon confirmed it had laid off 30% of their staff from 110 to 75 employees
StumbleUpon uses collaborative filtering (an automated process combining human opinions with machine learning of personal preference) to create virtual communities of like-minded Web surfers. Rating Web sites update a personal profile (a blog-style record of rated sites) and generate peer networks of Web surfers linked by common interest. These social networks coordinate the distribution of Web content, so that users "stumble upon" pages explicitly recommended by friends and peers. Giving a site a thumbs up results in the site being placed under the user's "favorites". Furthermore, users have the ability to stumble their personal interests like "History" or "Games".
Users rate a site by giving it a thumbs up, thumbs down selection on the StumbleUpon toolbar, and can optionally leave additional commentary on the site's review page, which also appears on the user's blog. This social content discovery approach automates the "word-of-mouth" referral of peer-approved Web sites and simplifies Web navigation.
In the settings section of Stumbleupon you can further filter the types of webpages you may come across. There are interest filters which allow you to include only content for all ages, R rated content, or X rated content. There are also content filters in which you can choose to allow stumbles with audio, video, flash and images.
On October 24, 2011, StumbleUpon deleted years' worth of user-generated content, and removed HTML blogging, standalone blog posts, and photoblogging capabilities. Additionally, all previous blog posts were converted from HTML to plain text, and all photos were deleted from previous blog posts. StumbleUpon stated, "Over time, we’ve come to realize that we are not able to support and scale a blogging platform, in addition to our recommendation engine."[14]
Content that is "stumbled upon" is informed by users' stated preferences, the thumbs up and down of their friends, and demographic information, among other factors the company does not fully disclose.
StumbleUpon is a discovery engine (a form of web search engine) that finds and recommends web content to its users. Its features allow users to discover and rate Web pages, photos and videos that are personalized to their tastes and interests using peer-sourcing and social-networking principles.
Toolbar versions exist for Firefox, Google Chrome, Opera, Internet Explorer and Safari. StumbleUpon also works with some independent Mozilla-based browsers.
Native mobile StumbleUpon apps exist for Windows, iOS,Android, and the Amazon Appstore.[
StumbleUpon was founded in November 2002 by Garrett Camp, Geoff Smith, Justin LaFrance and Eric Boyd during Garrett's time in post-graduate school in Calgary, Canada. The idea of creating a company was established before the content: of the five or six ideas for products, StumbleUpon was chosen. Garrett describes in a BBC interview the moment for him in which he felt the company had really taken off: "When we passed the half a million mark (in registered users), it seemed more real."
The popularity of the software attracted Silicon Valley investor Brad O'Neill to take notice of the company and assist with a move to San Francisco, as well as bringing in subsequent fund-raising totaling $1.2 million from other angel investors including Ram Shriram (Google), Mitch Kapor (Mozilla Foundation), First Round Capital and Ron Conway. Garrett Camp and Geoff Smith now reside in San Francisco, where StumbleUpon is headquartered.
StumbleUpon was owned by eBay from May 2007, when it was acquired for $75 million[9] until April 2009, when Garrett Camp, Geoff Smith and several investors bought it back.[10] StumbleUpon is now an independent, investor-backed startup once again, with offices in San Francisco and New York City.
In September 2012, StumbleUpon released an update for its iOS app that brought the new feature "StumbleDNA," which aggregates content that is recommended for you, trending content as well as a section where you can view the activity of your StumbleUpon connections.[11] On September 25, 2012, StumbleUpon released a redesign of its website in beta, and extended it to all users on October 24.[12]
On January 16, 2013, StumbleUpon confirmed it had laid off 30% of their staff from 110 to 75 employees
StumbleUpon uses collaborative filtering (an automated process combining human opinions with machine learning of personal preference) to create virtual communities of like-minded Web surfers. Rating Web sites update a personal profile (a blog-style record of rated sites) and generate peer networks of Web surfers linked by common interest. These social networks coordinate the distribution of Web content, so that users "stumble upon" pages explicitly recommended by friends and peers. Giving a site a thumbs up results in the site being placed under the user's "favorites". Furthermore, users have the ability to stumble their personal interests like "History" or "Games".
Users rate a site by giving it a thumbs up, thumbs down selection on the StumbleUpon toolbar, and can optionally leave additional commentary on the site's review page, which also appears on the user's blog. This social content discovery approach automates the "word-of-mouth" referral of peer-approved Web sites and simplifies Web navigation.
In the settings section of Stumbleupon you can further filter the types of webpages you may come across. There are interest filters which allow you to include only content for all ages, R rated content, or X rated content. There are also content filters in which you can choose to allow stumbles with audio, video, flash and images.
On October 24, 2011, StumbleUpon deleted years' worth of user-generated content, and removed HTML blogging, standalone blog posts, and photoblogging capabilities. Additionally, all previous blog posts were converted from HTML to plain text, and all photos were deleted from previous blog posts. StumbleUpon stated, "Over time, we’ve come to realize that we are not able to support and scale a blogging platform, in addition to our recommendation engine."[14]
Content that is "stumbled upon" is informed by users' stated preferences, the thumbs up and down of their friends, and demographic information, among other factors the company does not fully disclose.
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