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Viddler is an interactive online video platform for uploading, viewing, and tagging and commenting on videos. Viddler's paid business service includes secure uploading and viewing, support, a customizable player, the ability to create a private community, detailed analytics, priority encoding, HD encoding, iTunes support, control over advertising and full branding. There is an opt-in advertising option where revenue is shared, in addition to other add-on features. Viddler no longer provides a free service for non-commercial users. 
The company, headquartered in Bethlehem, PA, was founded in November 2005 by Robert Sandie and Donna DeMarco (Vice President). Viddler was created by a team of developers, designers and architects from companies such as RackSpace, IBM and Macromedia. Viddler.com launched in December 2006 with in-line commenting and tagging features.
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Viddler is a video hosting service that provides a range of solutions and business-driven results. It offers an outlet for video interaction with the ability to post timed tags and timed comments directly in a video. Viewers can also use a web cam to record a video response.
Viddler has a range of privacy and security settings available. Videos can be shared on social networking sites or any website with a simple embedding feature. There is also a Viddler WordPress plugin that simplifies the process of posting a video to a WordPress blog. Viddler’s robust API wrappers come in many common languages, including Java, PHP, and Ruby.
In April 2008, the company launched an application for Facebook, created by lead social developer Kyle Slattery. It replicates the majority of functionality from Viddler.com into Facebook. The Facebook app displays the user's videos and the daily highlights and latest videos from Viddler.
Supported input file formats include .avi .dv .mov .qt .mpg .mpg2 .mpeg2 .mpeg4 .mp4 .3gp .3g2 .asf .wmv .flv.
Customers can choose between a full player and a simple player. The full player includes timed comments, video comments, timed tags, a post-roll screen, custom color scheme, custom clickable logo and permalink, and share/embed; while the simple player offers only the custom color scheme, custom clickable logo and permalink, and share/embed. Both players offer optional add-ons, including advertising, which allows users to control ad selection and revenue share. An unlimited number of videos can be uploaded; cost of plans and features vary.