Deliciousis a social bookmarking web service for storing, sharing, and discovering web bookmarks. The site was founded by Joshua Schachter in 2003 and acquired by Yahoo! in 2005. By the end of 2008, the service claimed more than 5.3 million users and 180 million unique bookmarked URLs.
Vimeo is a video-sharing website on which users can upload, share, and view videos. It was founded by Zach Klein and Jake Lodwick in November 2004. The name Vimeo was created by co-founder Jake Lodwick and is a play on the word video, inserting the word "me" as a reference to the site's exclusive dedication to user-made video, and is also an anagram of "movie."
SlideShareis an online slide hosting service. Users can upload files in the following file formats: PowerPoint, PDF, Keynote or OpenOffice presentations. Launched on October 4, 2006, the website is considered to be similar to YouTube, but for slideshows.The website was originally meant to be used for businesses to share slides among employees more easily, but it has since expanded to also become a host of a large number of slides which are uploaded merely to entertain.
Scribdis a Web 2.0 based document-sharing website which allows users to post documents of various formats, and embed them into a web page using its iPaper format. Scribd was founded by Trip Adler in 2006.Scribd's major competitors are Docstoc, WePapers, and issuu.
Preziis a web-based presentation application and storytelling tool that uses a single canvas instead of traditional slides. Text, images, videos and other presentation objects are placed on the infinite canvas and grouped together in frames. The canvas allows users to create non-linear presentations, where users can zoom in and out of a visual map.
Picasais an image organizer and image viewer for organizing and editing digital photos, plus an integrated photo-sharing website, originally created by Idealab in 2002 and owned by Google since 2004.
Dropboxis a Web-based file hosting service operated by Dropbox, Inc. that uses cloud computing to enable users to store and share files and folders with others across the Internet using file synchronization. It was founded in 2007 by Drew Houston and Arash Ferdowsi as a Y Combinator startup.