SlideShare is a web-based slide hosting service that allows users to upload PowerPoint, PDF, Keynote and OpenDocument presentations privately or publicly. Uploaded slide decks can be viewed on the site, mobile devices, or embedded on other websites. SlideShare sees high traffic with over 58 million unique visitors per month and has grown to over 16 million registered users. It launched in 2006 and added features like Zipcasts in 2011 for sharing video presentations.

1. Web 2.0 based slide hosting service. Users can upload
files privately or publicly in the following file
formats: PowerPoint, PDF, Keynote or OpenDocument
presentations. Slide decks can then be viewed on the
site itself, on hand held devices or embedded on other
sites
Launched on October 4, 2006

2. Zipcasts: In February 2011 SlideShare added a feature called Zipcasts
3,943 Unique Visits Per Day
39,399 Pages Viewed Per Day
141 Different Countries
90 Different Languages
157 Videos Uploaded Per Day
883 Hours & 55 Minutes Of video watched Per Day
329 Video Comments Made Per Day
1,102 Channel Comments Made Per Day
244 Video Ratings Per Day
509 Subscriptions Made Per Day

3. 58 million unique visitors a month, and has about 16 million registered users SlideShare was
voted among the World's Top 10 tools for education & e-learning in 2010.SlideShare's
biggest competitors include Scribd.com, Issuu and Docstoc. Some of the notable users of
SlideShare include The White House, NASA, World Economic Forum, State of Utah, O'Reilly
Media, Hewlett Packard and IBM.