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About File sharing

File sharing is the practice of distributing or providing access to digital media,such as computer programs, multimedia (audio, images and video),

documents or electronic books.File sharing may be achieved in a number of ways.

Common methods of storage, transmission and dispersion include manual sharing utilizing removable media,

centralized servers on computer networks,World Wide Web-based hyperlinked documents, and the use of distributed peer-to-peer networking.


Peer-to-peer file sharing

Peer-to-peer file sharing is based on the peer-to-peer (P2P) application architecture.

Shared files on the computers of other users are indexed on directory servers.

P2P technology was used by popular services like Napster and Limewire. The most popular protocol for P2P sharing is BitTorrent.

File sync and sharing services

Cloud-based file syncing and sharing services implement automated file transfers by updating files from a dedicated sharing directory on each user's networked devices.

Files placed in this folder also are typically accessible through a website and mobile app, and can be easily shared with other users for viewing or collaboration.

Such services have become popular via consumer-oriented file hosting services such as Dropbox and Google Drive.

rsync is a more traditional program released in 1996 which synchronizes files on a direct machine-to-machine basis.

Data synchronization in general can use other approaches to share files, such as distributed filesystems, version control, or mirrors.


Files were first exchanged on removable media. Computers were able to access remote files using filesystem mounting,

bulletin board systems (1978), Usenet (1979), and FTP servers (1985).

Internet Relay Chat (1988) and Hotline (1997) enabled users to communicate remotely through chat and to exchange files.

The mp3 encoding, which was standardized in 1991 and substantially reduced the size of audio files, grew to widespread use in the late 1990s.

In 1998, MP3.com and Audiogalaxy were established, the Digital Millennium Copyright Act was unanimously passed,

and the first mp3 player devices were launched.In June 1999, Napster was released as an unstructured centralized peer-to-peer system,

requiring a central server for indexing and peer discovery.

It is generally credited as being the first peer-to-peer file sharing system. In December 1999,

Napster was sued by several recording companies and lost in A&M Records, Inc. v. Napster, Inc..

In the case of Napster, it has been ruled that an online service provider could not use the "transitory network transmission" safe harbor in the DMCA

if they had control of the network with a server.Gnutella, eDonkey2000, and Freenet were released in 2000, as MP3.com and Napster were facing litigation.

Gnutella, released in March, was the first decentralized file sharing network. In the gnutella network,

all connecting software was considered equal, and therefore the network had no central point of failure. In July, Freenet was released and became the first anonymity network.

In September the eDonkey2000 client and server software was released.
In March 2001, Kazaa was released.

Its FastTrack network was distributed, though unlike gnutella, it assigned more traffic to 'supernodes' to increase routing efficiency.

The network was proprietary and encrypted, and the Kazaa team made substantial efforts to keep other clients such as Morpheus off of the FastTrack network.

In October 2001, the MPAA and the RIAA filed a lawsuit against the developers of Kazaa,

Morpheus and Grokster that would lead to the US Supreme Court's MGM Studios, Inc. v. Grokster, Ltd.

decision in 2005.Shortly after its loss in court, Napster was shut down to comply with a court order.

This drove users to other P2P applications and file sharing continued its growth.

The Audiogalaxy Satellite client grew in popularity, and the LimeWire client and BitTorrent protocol were released.

Until its decline in 2004, Kazaa was the most popular file sharing program despite bundled malware and legal battles in the Netherlands, Australia, and the United States.

In 2002, a Tokyo district court ruling shut down File Rogue,

and the Recording Industry Association of America (RIAA) filed a lawsuit that effectively shut down Audiogalaxy. 

From 2002 through 2003, a number of BitTorrent services were established, including Suprnova.org, isoHunt, TorrentSpy, and The Pirate Bay. In September 2003,

the RIAA began filing lawsuits against users of P2P file sharing networks such as Kazaa.

As a result of such lawsuits, many universities added file sharing regulations in their school administrative codes

(though some students managed to circumvent them during after school hours).

Also in 2003, the MPAA started to take action against BitTorrent sites,

leading to the shutdown of Torrentse and Sharelive in July of 2003. With the shutdown of eDonkey in 2005,

eMule became the dominant client of the eDonkey network. In 2006, police raids took down the Razorback2 eDonkey server and temporarily took down The Pirate Bay.
“The File Sharing Act was launched by Chairman Towns in 2009,

this act prohibited the use of applications that allowed individuals to share federal information amongst one another.

On the other hand,

only specific file sharing application were made available to federal computers” (United States.Congress.House).

In 2009, the Pirate Bay trial ended in a guilty verdict for the primary founders of the tracker. The decision was appealed,

leading to a second guilty verdict in November 2010. In October 2010,

Limewire was forced to shut down following a court order in Arista Records LLC v. Lime Group LLC

but the gnutella network remains active through open source clients like Frostwire and gtk-gnutella.

Furthermore, multi-protocol file sharing software such as MLDonkey and Shareaza adapted in order to support all the major file sharing protocols,

so users no longer had to install and configure multiple file sharing programs.

On January 19, 2012, the United States Department of Justice shut down the popular domain of Megaupload (established 2005).

The file sharing site has claimed to have over 50,000,000 people a day.

Kim Dotcom (formerly Kim Schmitz) was arrested with three associates in New Zealand on January 20, 2012 and is awaiting extradition.

The case involving the downfall of the world's largest and most popular file sharing site was not well received,

with hacker group Anonymous bringing down several sites associated with the take-down.

In the following days, other file sharing sites began to cease services; Filesonic blocked public downloads on January 22, with Fileserve following suit on January 23