Stumbleupon
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|
| Available in | English |
|---|---|
| Founder(s) | Garrett Camp & Geoff Smith |
| Website | www.stumbleupon.com/ |
| Alexa rank |
 723 (August 2016[update]) |
| Registration | Yes |
| Launched | November 2001 |
| Current status | Active |
|
Content license
|
Proprietary freeware |
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 graduate school at the University of Calgary. 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.
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