Alluding to the version -numbers that commonly designate software upgrades, the phrase "Web 2.0" hints at an improved form of the World Wide Web that lets people collaborate and share informtion online.
“ The Social Web”
“ Web 2.0” was reportedly first conceptualized and made popular by Tim O'Reilly and Dale Dougherty of O'Reilly Media in 2004.
“ Web 2.0 is the business revolution in the computer industry caused by the move to the internet as platform, and attempt to understand the rules for success on that new platform. Chief among those rules is this: Build applications that harness network effects to get better the more people use them.”-Tim O’Reilly.
The web before the dot com crash is often referred to as Web 1.0. New technologies such as blogs, social bookmarking, wikis and RSS feeds are just a few of the technologies that are helping to shape and direct Web 2.0.
There are only a very few of the differences between Web 1.0 and Web 2.0 but they are the major ones. Web 1.0 is driven and controlled by the ‘powers-that-be’ and Web 2.0 is driven by users and not to mention more and more profitable. we might even call it a power shift of seismic proportions.
Nowadays library instruction that are delivered online, has begun incorporating more interactive, media-rich facets.
The static, text-based explanation coupled with a handout to be downloaded is being supplanted by more experiential tutorials.
The Association of College and Research Libraries' Instruction Section provides a database of tutorials, many of which are Web 2.0 in their nature, called Peer Reviewed Instructional Materials Online (PRIMO).
Many of these tutorials use Flash programming, screen-cast software, or streaming audio or video, and couple the media presentation with interactive quizzing; users respond to questions and the system responds in kind
These tutorials are perhaps the first of library services to migrate into more the more socially rich Web 2.0.
Most of these however, do not generally provide a means by which users can interact with one another, nor directly with librarians, but it can be provided by other means of Web 2.0.
A folksonomy is an Internet -based information retrieval methodology consisting of collaboratively generated, open-ended labels that categorize content such as Web pages , online photographs , and Web links . A folksonomy is most notably contrasted from a taxonomy in that the authors of the labeling system are often the main users (and sometimes originators) of the content to which the labels are applied. The labels are commonly known as tags and the labeling process is called tagging .
The often-cited example of the U.S. Library of Congress's Subject Heading “cookery,” which no English speaker would use when referring to “cookbooks,” illustrates the problem of standardized classification. Tagging would turn the useless “cookery” to the useful “cookbooks” instantaneously, and lateral searching would be greatly facilitated.
The tagged catalog is an open catalog, a customized, user-centered catalog, enable users to follow both standardized and user-tagged subjects.
Wikis are essentially open web-pages, where anyone registered with the wiki can publish to it, amend it, and change it.
Collaborative, knowledge-sharing tool.
Online space for harnessing collective intelligence.
Open source wiki software (e.g PBwiki,Wetpaint, Mediawiki) can use to create a successful subject guide that facilitates customer feedback.
Wiki I f you've done something at your library that you consider a success, please write about it in the wiki or provide a link to outside coverage. If you have materials that would be helpful to other librarians, add them to the wiki.
RSS (which stands for Really Simple Syndication) is an easy way to receive automatic updates from your chosen websites and blogs. Instead of going to a website, the website will send you a message every time there is something new.
RSS allows you to be notified when new content appears on a website, blog or news page. Basically, this means that you can get new content, as it is posted to a site without actually having to visit the site. In other words, it is an easy way to manage, customize, and receive information that interests you and it can also save you a great deal of time.
RSS is an xml-based format which allows web publishers to create and disseminate feeds of data, based on the content of their website.
RSS enables you to subscribe to a website using a tool called a news reader or aggregator.
RSS feeds contain article headlines, links and descriptions. The feeds are updated as the website is updated.
Librarians (and others) who strive to keep current with the latest news and trends in their particular field have started using feeds and readers to save time and organize materials.
Install a software called News Reader (sometimes called Aggregator) on your desktop computer and use News Reader to subscribe to the RSS content. This will help you to display the latest headlines and content from your chosen websites.
Mashups are perhaps the single conceptual underpinning to all the technologies discussed. They are ostensibly hybrid applications, where two or more technologies or services are conflated into a completely new, novel service.
For example, WikiBios , a site where users create online biographies of one another, essentially blending blogs with social networks.
Library 2.0 is a mashup. It is a hybrid of blogs, wikis, streaming media, content aggregators, instant messaging, and social networks.
It allows the user to edit OPAC data and metadata, saves the user's tags, IM conversations with librarians, wiki entries with other users (and catalogs all of these for others to use), and the user is able to make all or part of their profile public.
Users can see what other users have similar items checked-out, borrow and lend tags, and a giant user-driven catalog is created and mashed with the traditional catalog.
Library 2.0 is completely user-centered and user-driven. It is a mashup of traditional library services and innovative Web 2.0 services. It is a library for the 21st century, rich in content, interactivity, and social activity.