Vertical search
Vertical search, part of a larger subgrouping known as “specialized”
search, is a relatively new tier in the Internet search industry
consisting of search engines that focus on specific businesses.
While Google, Yahoo! and the like will continue to dominate
the online consumer search market, research analysts say myriad
specialized search engines are emerging to address the particular
information needs of niche audiences and professions. (Learn
more from original Source: wikipeida.com)
Captcha
What is A CAPTCHA? A CAPTCHA (an acronym for “completely automated
public Turing test to tell computers and humans apart”, trademarked
by Carnegie Mellon University) is a type of challenge-response
test used in computing to determine whether or not the user
is human. The term was coined in 2000 by Luis von Ahn, Manuel
Blum, and Nicholas J. Hopper of Carnegie Mellon University,
and John Langford of IBM. A common type of CAPTCHA requires
that the user type the letters of a distorted image, sometimes
with the addition of an obscured sequence of letters or digits
that appears on the screen. Because the test is administered
by a computer, in contrast to the standard Turing test that
is administered by a human, a CAPTCHA is sometimes described
as a reverse Turing test. This term, however, is misleading
because it could also mean a Turing test in which the participants
are both attempting to prove they are the computer. (Source:
wikipedia.com)
Wiki
What is A WIKI? A wiki is a type of website that allows users
to add, remove, or otherwise edit all content very quickly
and easily, sometimes without the need for registration. This
ease of interaction and operation makes a wiki an effective
tool for collaborative writing. The term wiki can also refer
to the collaborative software itself (wiki engine) that facilitates
the operation of such a website (see wiki software), or to
certain specific wiki sites, including the computer science
site (and original wiki), WikiWikiWeb, and the online encyclopedia
Wikipedia. When used to refer to a specific site, wiki is
often capitalized.
In essence, a wiki is a simplification of the process of creating
HTML pages combined with a system that records each individual
change that occurs over time, so that at any time, a page
can be reverted to any of its previous states. A wiki system
may also include various tools, designed to provide users
with an easy way to monitor the constantly changing state
of the wiki as well as a place to discuss and resolve the
many inevitable issues, namely, the inherent disagreement
over wiki content. Wiki content can also be misleading, as
users are bound to add incorrect information to the wiki page.
Blog
What is A Blog? A weblog (usually shortened to blog, but occasionally
spelled web log or weblog) is a web-based publication consisting
primarily of periodic articles, most often in reverse chronological
order. Early weblogs were simply manually updated components
of common websites. However, the evolution of tools to facilitate
the production and maintenance of web articles posted in said
chronological fashion made the publishing process feasible
to a much larger, less technical, population. Ultimately,
this resulted in the distinct class of online publishing that
produces blogs we recognize today. For instance, the use of
some sort of browser-based software is now a typical aspect
of “blogging”. Blogs can be hosted by dedicated blog hosting
services, or they can be run using blog software on regular
web hosting services.
Like other media, blogs often focus on a particular subject,
such as food, politics, or local news. Some blogs function
as online diaries. A typical blog combines text, images, and
links to other blogs, web pages, and other media related to
its topic.
Web 2.0
What is Web 2.0? Web 2.0 generally refers to a second generation
of services available on the World Wide Web that lets people
collaborate and share information online. In contrast to the
first generation, Web 2.0 gives users an experience closer
to desktop applications than the traditional static Web pages.
The term was popularized by O’Reilly Media and MediaLive International
as the name for a series of web development conferences that
started in October 2004. Web 2.0 applications often use a
combination of techniques devised in the late 1990s, including
public web service APIs (dating from 1998), Ajax (1998), and
web syndication (1997). They often allow for mass publishing
(web-based social software). The term may include blogs and
wikis. To some extent Web 2.0 is a buzzword, incorporating
whatever is newly popular on the Web (such as tags and podcasts),
and its meaning is still in flux. CMP, which purchased MediaLive,
claims the term as a service mark, reserving exclusive use
of the term for its own conferences, further muddying the
waters.
|
