THE SOCIAL NETWORKING SERVICES

Multiply is a social networking service with an emphasis on allowing users to share media - such as photos, videos and blog entries - with their "real-world" network. The website was launched in March 2004 and is privately held with backing by VantagePoint Venture Partners, Point Judith Capital, Transcosmos, and private investors.^[1] Multiply has over 11 million registered users.^[2]

On Multiply, a user's network is made up of their direct contacts, as well as others who are closely connected to them through their first-degree relationships. Additionally, users are encouraged to specify the nature of their relationship with one another, making it possible to share content with their entire network of closely-related people, or subsets thereof including friends, family, professional contacts, and so on.

Multiply is also known for stronger user security than most social networking sites. Users can limit if their item can be viewed by setting security settings to Public, Private (network only), or Private (invite only) for each item on their site.

Flickr is an image and video hosting website, web services suite, and online community platform. In addition to being a popular Web site for users to share personal photographs, the service is widely used by bloggers as a photo repository. As of November 2008^[update], it claims to host more than 3 billion images.

THEY FEATURES:

• 3.1 Organization
• 3.2 Organizr
• 3.3 Access control
• 3.4 Interaction and compatibility
• 3.5 Filtering
• 3.6 Licensing
• 3.7 Map sources

Xanga's origins can be traced back to 1999, when it began as a site for sharing book and music reviews. It now has an estimated 40 million users worldwide. As of May 24, 2008, Alexa Internet ranked Xanga as the 231st most visited site on the Internet.
All Xanga members receive a "Xanga Site", a web site made up of a weblog, a photoblog, a videoblog, an audioblog, a "Pulse" (mini-blog), and a social networking profile. Members also have the option of joining or making blogrings (groups).
Xanga supported limited profiles as early as its launch in 2000. Profiles were revamped on February 1, 2004 to hold more information and offer better email security and control. Each member was allowed to upload one profile picture. On April 30, 2004, Xanga upgraded its profile image uploading to offer better quality images. Then on July 27, 2004, Xanga followed up with multiple profile pics; classic members were allowed to upload up to 3 profile pics, while Premium members were allowed to upload up to 99 profile pics. Xangans were allowed to set a default pic that would appear next to their username, as well as choose between their profile pics in each entry. Then, on November 19, 2004, Xanga extended its support of multiple profile pics to comment icons; now Xangans could choose which profile pic they wanted to appear next to each of their comments.