Ma.gnolia is a social bookmarking web site comparable to Delicious or Simpy. A prominent feature that distinguishes it from other similar web sites is the group feature, which allows several users to share a common collection of bookmarks. The group is managed by a selected number of group managers. Users may rate bookmarks and mark bookmarks as private.

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Tumblr is a re-envisioning of tumblelogging, a subset of blogging that uses quick, mixed-media posts. The service hopes to do for the tumblelog what services like LiveJournal and Blogger did for the blog. The difference is that its extreme simplicity will make luring users a far easier task than acquiring users for traditional weblogging. Anytime a user sees something interesting online, they can click a quick “Share on Tumblr” bookmarklet that then tumbles the snippet directly. The result is varied string of media ranging links and text to pictures and videos that takes very little time and effort to maintain.

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Faves is a social bookmarking and networking software that installs a single browser button for users to “fave” a webpage, making a link to the page part of their Faves profile. Until October 2007, Faves was called Blue Dot.

While offering a service similar to the better-known del.icio.us, Faves has a wider range of functionality that encourages interaction with “friends” in rating the content of linked webpages. When a registered user visits their Faves home page, they see a summary of the bookmarks, called “Faves” by the company, that have been most recently shared by their friends.

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FriendFeed is a feed aggregator that consolidates the updates from social media and social networking websites, social bookmarking websites, blogs and micro-blogging updates, as well as any other type of RSS/ Atom feed. Users can use this stream of information to create customized feeds to share (and comment) with friends.

Bloggers writing about FriendFeed have said that this service addresses the shortcomings of social media services which exclusively facilitate tracking of their own members’ social media activities on that particular social media service, whereas FriendFeed provides the facility to track these activities (such as posting on blogs, Twitter and Flickr) across a broad range of different social networks. Some (but not all) bloggers are concerned about readers commenting on their posts inside FriendFeed instead of on their blogs, resulting in less page views for the blogger.

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Mahalo.com is a web directory (or human search engine) launched in alpha test in May 2007 by Jason Calacanis. As of January 2008, the project is in beta test. It differentiates itself from algorithmic search engines like Google and Ask.com, as well as other directory sites like DMOZ and Yahoo by tracking and building hand-crafted result sets for many of the currently popular search terms. Mahalo means “thank you” in Hawaiian.

Mahalo’s directory employs human editors to review websites and write search engine results pages that include text listings, as well as other media, such as photos and video. Each Mahalo search results page includes links to the top seven sites, as well as other categorized information, and additional web pages from Google. The company also pays freelancers to create pages for piecework compensation in the Mahalo Greenhouse – the pages are approved by a full time staff member prior to appearing in the main index.

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