Blogging and the Wisdom of Crowds
One of the most highly touted features of the Web 2.0 era is the rise of blogging. Personal home pages have been around since the early days of the web, and the personal diary and daily opinion column around much longer than that, so just what is the fuss all about?

Innovation in Assembly
Lightweight business models are a natural concomitant of lightweight programming and lightweight connections. The Web 2.0 mindset is good at re-use. A new service like housingmaps.com was built simply by snapping together two existing services. Housingmaps.com doesn’t have a business model (yet)–but for many small-scale services, Google AdSense (or perhaps Amazon associates fees, or both) provides the snap-in equivalent of a revenue model.

These examples provide an insight into another key web 2.0 principle, which we call “innovation in assembly.” When commodity components are abundant, you can create value simply by assembling them in novel or effective ways. Much as the PC revolution provided many opportunities for innovation in assembly of commodity hardware, with companies like Dell making a science out of such assembly, thereby defeating companies whose business model required innovation in product development, we believe that Web 2.0 will provide opportunities for companies to beat the competition by getting better at harnessing and integrating services provided by others.

These are the main ideas why Web 2.0 was built

Services, not packaged software, with cost-effective scalability
Control over unique, hard-to-recreate data sources that get richer as more people use them
Trusting users as co-developers
Harnessing collective intelligence
Leveraging the long tail through customer self-service
Software above the level of a single device
Lightweight user interfaces, development models, AND business models
(Taken from O’Reilly)

The web 2.0 is the latest tedchnology which is taking the place of DOT COM. The concept started with the brainstorming conference between O’Reilly and MediaLive International. They started this due to the crash of DOT-COM.

These are some of the differences between the two.

1. The Web As Platform

The work in 2.0 is still in progress, but shows that many ideas radiates out from web 2.0 core. 

Here is Prototype page of Web 2.0

http://www.protopage.com/untitled-20j4jibbvknq0g9ywbf4pdw2rul9nch07e6ar0vm

Here is a quote that Tim O’reilly gave of what 2.0 is going to become

‘Web 2.0 is the network as platform, spanning all connected devices; Web 2.0 applications are those that make the most of the intrinsic advantages of that platform: delivering software as a continually-updated service that gets better the more people use it, consuming and remixing data from multiple sources, including individual users, while providing their own data and services in a form that allows remixing by others, creating network effects through an “architecture of participation,” and going beyond the page metaphor of Web 1.0 to deliver rich user experiences.

More about Web 2.0

The web 2.0 is known to be an inmproved form of world wide web. The easier word for it is “Participatory Web”, having better tools and platforms that make the users tags, blogs, comments, modifys, augments, select from, rank, and generally answer back to the other users and the general world community, has increasingly seen use as an alternative phrase. Some commentators regard reputation-based public wikis, such as Wikipedia, as pioneering examples of Web 2.0/Participatory Web technology.

Web 2.0 is used for blog sites and to make things easier and more advanced in the sites. and some examples of site are:

Flickr (www.flickr.com)
Vimeo (www.vimeo.com)

Del.icio.us (del.icio.us)

Digg (www.digg.com)

Bloglines (www.bloglines.com)

These sites, show you the best of Web 2.0 sites that you can get the most out of. No matter the task, video, audio, or photos, they have a site that works great for what you want to do and uses all the great features of Web 2.0 technology.

There are 4 different applications.