E-mail is the transmission of messages over communications networks. Messages can be entered from a keyboard or stored as electronic files. E-mail systems allow users to send messages anywhere in the world. Wikis are collaborative websites that allow anyone to edit or modify content using a browser interface. In contrast, blogs typically have a single author and do not allow changes to original posts. Social bookmarking involves listing links on a shared network for others to search relevant keywords.

2. E-MAIL
 Short for electronic mail
 Transmission of messages over communications networks.
 The messages can be notes entered from the keyboard or
electronic files stored on disk .
 Some electronic-mail systems are confined to a single
computer system or network, but others have gateways to
other computer systems, enabling users to send electronic
mail anywhere in the world.
 fast, flexible, and reliable.

3. WIKI
 Short term for WIKIPEDIA
 A collaborative Web site comprises a collective work of many
authors.
 Similar to a blog in structure and logic, a wiki allows anyone
to edit, delete or modify content that has been placed on the
Web site using a browser interface, including the work of
previous authors.
 In contrast, a blog, typically authored by an individual, does
not allow visitors to change the original posted material, only
add comments to the original content.
 The term wiki refers to either the Web site or the software
used to create the site.

4. SOCIAL BOOKMARKING
 Social bookmarking is to examine how they work.
 Links are listed on a network, then whoever has access to that
network can search for links that pertain to the keywords that
person is searching for.
 Each link has three keywords associated with it, generally
keywords that are optimized on their webpages, and when
those keywords are searched for, ideally, it is that particular
link that comes up.

5. HTML
 Short for HyperText Markup Language,
 Authoring language used to create documents on the World
Wide Web. HTML is similar to SGML.
 It is not a strict subset.

6. PODCAST
 A media player by Apple Computer that is used for playing
digital music or video files .
 iTunes is also used to purchase digital music files or
subscribe to podcasts through Apple's iTunes Music Store.
 The iTunes player is also an interface on the iPod and iPhone.
The iTunes media player was launched in 2001 .

7. VOIP
 Short for Voice over Internet Protocol
 Category of hardware and software that enables people to use
the Internet as the transmission medium for telephone calls
by sending voice data in packets using IP rather than by
traditional circuit transmissions of the PSTN.
 An advantage of VoIP is that the telephone calls over the
Internet do not incur a surcharge beyond what the user is
paying for Internet access.

8. ONLINE CHAT
 Real-time communication between two users via computer.
 Once a chat has been initiated, either user can enter text by
typing on the keyboard and the entered text will appear on the
other user's monitor.
 Most networks and online services of fer a chat feature like
Facebook,Gmail,Yahoo.

9. WWW
 The WWW prefix (short for World Wide Web)
 Always the first in URL addresses is an indication that the
Web address exists on the vast network of the World Wide
Web.
 Sometimes in a URL the "WWW" is followed by a number, such
as "WWW1" or "WWW2."

10. STREAMING
 Streaming or media streaming is a technique for transferring
data so that it can be processed as a steady and continuous
stream.
 Streaming technologies are becoming increasingly important
with the growth of the Internet because most users do not
have fast enough access to download large multimedia files
quickly.
 Client browser or plug-in can start displaying the data before
the entire file has been transmitted.

11. BLOG
 Short for Web log
 A blog is a Web page that serves as a publicly accessible
personal journal for an individual.
 Typically updated daily, blogs often reflect the personality of
the author.

12. SOCIAL NETWORKING
 A social structure made of nodes that are generally
individuals or organizations.
 A social network represents relationships and flows between
people, groups, organizations, animals, computers or other
information/knowledge processing entities.
 The term itself was coined in 1954 by J. A . Barnes.

13. URL
 Abbreviation of Uniform Resource Locator (URL) it is the
global address of documents and other resources on the
World Wide Web.
 The first part of the URL is called a protocol identifier and it
indicates what protocol to use
 second part is called a resource name and it specifies the IP
address or the domain name where the resource is located .
 The protocol identifier and the resource name are separated
by a colon and two forward slashes.

14. WEBFEED
 A Web document that is a shortened version of a Web page
that has been created for syndication. Feeds usually end in
.xml or .rss.

15. REFERENCE:
 http://www.webopedia.com/TERM/E/e_mail.html
 http://www.brickmarketing.com/what -is-socialbookmarking.htm
 http://www.webopedia.com/TERM/P/podcasting.html
 http://www.webopedia.com/TERM/W/wiki.html
 http://www.webopedia.com/TERM/H/HTML.html
 http://www.webopedia.com/TERM/V/VoIP.html
 http://www.webopedia.com/TERM/S/streaming.html
 http://www.webopedia.com/TERM/B/blog.html
 http://www.webopedia.com/TERM/S/social_network.html
 http://www.webopedia.com/TERM/F/feed.html
 http://www.webopedia.com/TERM/U/URL.html