hashtags which we are using in facebook. twitter, flicker,.... this ppt gives iinformation about various types of tags..

1. TAGS
The Key to Global Business

2. Introduction
Labeling and tagging are carried out to perform functions such as
aiding in classification, marking ownership, noting boundaries, and
indicating online identity. They may take the form of words, images, or
other identifying marks. An analogous example of tags in the physical
world is museum object tagging. In the organization of information and
objects, the use of textual keywords as part of identification and
classification long predates
computers. However, computer based searching made the use of
keywords a rapid way of exploring records. Tagging was popularized by
websites associated with Web 2.0 and is an important feature of many
Web 2.0 services. It is now also part of some desktop software like
tag2find and GoToTags. Apart from such uses on the Internet and/or
personal use, tags have proved to be of great help to companies to
market their products online
as well as in stores.

3. Tags: History
• In 1997, the collaborative portal "A Description of the Equator
and Some Other Lands" produced by documenta X, Germany,
coined the term Tag for its co-authors and guest authors on
its Upload page.
• In 2003, the social bookmarking website Delicious provided a
way for its users to add "tags" to their bookmarks (as a way to
help find them later); Delicious also provided browseable
aggregated views of the bookmarks of all users featuring a
particular tag.

4. Tags: Current Status
• Tagging has gained wide popularity due to the growth of
social networking, photography sharing and bookmarking
sites.
• In the early days of the web keywords, Meta tags were used
by web page designers to tell search engines what the web
page was about. Today's tagging takes the Meta keywords
concept and re-uses it.

5. Types of Tags
• Hash Tag
• A hashtag is a kind of metadata tag marked by the
prefix #, sometimes known as a "hash" symbol.
• Triple Tag
• A triple tag or machine tag uses a special
syntax to define extra semantic information
about the tag, making it easier or more
meaningful for interpretation by a computer
program.

6. Types of Tags
• Knowledge Tag
• A knowledge tag is a type of meta-information
that describes or defines some aspect of an
information resource (such as a document, digital
image, relational table, or web page).
• Capturing knowledge in tags takes many different
forms, there is factual knowledge (that found in
books and data), conceptual knowledge (found in
perspectives and concepts), expectational
knowledge (needed to make judgments and
hypothesis), and methodological knowledge
(derived from reasoning and strategies).

7. Uses

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12. Uses

13. Uses

14. Advantages and Disadvantages

15. Thank You.