"YouTube's video responses feature has been retired as explained in this announcement. While existing video responses are still available, YouTube no longer supports the ability to retrieve a list of video responses for a video, to upload new video responses, or to delete video responses, though you can delete the video that was used in a video response. Consequently, these functions are also no longer supported in the API."
(Google Developers, 30 September 2013)
[The feature was retired on 12 September 2013 as explained here: http://youtubecreator.blogspot.co.uk/2013/08/so–long–video–responsesnext–up–better.html]
"You can create video compilations and share it with friends. You can share your created videos almost anywhere (e.g. to your website, your blog, other social networking websites).
During Beta stage, Veengle will handle only youtube videos. When the full version is ready, users will be able to upload their videos directly to Veengle."
[This tool which was located at: http://www.veengle.com/about is longer in operation.]
Launched July 2006, discontinued July 2011.
"Intute, as the new best of the Web service, has been created in response to users' needs and the changing Internet information environment. It is a free national service enabling lecturers, researchers and students to discover and access quality Internet resources. Intute exists to advance education and research by promoting the most intelligent use of the Internet.
Intute works through evaluation and collaboration. It has massive potential to deliver a service on a national level which responds to those fundamental principles of librarians and information professionals, namely trust, quality, and ease of use and user empowerment in the ever–changing and complex world of education.
Intute is hosted by MIMAS at The University of Manchester, and is a collaboration among a whole host of partners and contributors. At the heart of the organisation is a consortium of seven universities, bringing together a wealth of expertise and knowledge. Intute is funded by the Joint Information Systems Committee (JISC), with support from the Arts and Humanities Research Council (AHRC), and the Economic and Social Research Council (ESRC)."
(Caroline Williams, 2006)
Williams, C. (2006). "Intute: The New Best of the Web." Ariadne July 2006(48).
"retaggr [was before it closed] a widget–based service that enables active web users to link all their various site–based profiles into a single, always updated, interactive business card that can be attached to virtually any type of content or interaction the user has on the web.
The interactive profile card can be linked to or embedded anywhere online, including in email signatures, blog entries, other text, or as part of online profiles on sites like LinkedIn, Facebook, twitter, and others. It lets you leave a summary of the way you define yourself on the web anywhere you want to share it."
(Retaggr, CrunchBase Profile)
"Ofamind is an online service that stores your interests and research. Ofamind is unique in that it integrates with your browser to make it remarkably easy to record interesting information to your Ofamind 'views', or storage areas at the Ofamind website. You can also upload presentations to Ofamind for viewing by colleagues, including slides integrated with audio. Ofamind is partly funded by the National Science Foundation."
(Ofamind, 2007, http://www.ofamind.com/faq.html)