Microblogging
Microblogging will be the critical change in the way we write in Web 3.0. Imagine a world where your mobile phone, your email, and you television could all produce feedback that could easily be pushed to any or all blogging platforms. If you take a picture from your smart-phone, it would be automatically tagged, bagged and forwarded to your “lifestream”. If you rated a television show that you were watching, your review would be forwarded into the stream.
Of course, the allure of any individual blog would be much more limited. As the popularity of micro-blogging explodes, more and more basically “unreadable” blog will start to populate the blogosphere. It’s not hard to imagine a world where the vast majority of your posts amount to, “stuck in traffic, ugh…”
Fortunately, microblogging also opens up the world to new opportunities. Live blogging, a technique usually reserved for important events, would become common. If you can’t actually be at a conference, pictures, video and commentary could be pushed to you in real time. The entire world would become an Op-Ed piece.
Defined searching methods would also transform blog writers into brands themselves. Since everything would be happening in near real-time, it’s the writer who can get to the event and convey it most convincingly that will draw the crowds. Everyone has the same information, the question will be who makes you want to read it.
Related Companies: Jiaku, Tumblr, Twitter
RSS Integration
Web 3.0 will be the age of the RSS. Web services will enable you to blog from anywhere, and RSS will enable you to combine all of these divergent feeds into one coherent picture. Blogs themselves will be reduced to a stream of consciousness interspersed with longer, traditional news pieces. Where one we could only hope to get one or two posts written a day, it won’t be strange to have two dozen posts in one afternoon on a Web 3.0 enabled blog.
If you want to take a peek into the future, look at web services like Twitter or Facebook status.These streams only ask for one line worth of information describing exactly what you are doing at the moment. As a result, they provide extremely concise, constantly updated information. Unfortunately, neither one of these services currently provide RSS, but it is unlikely that the Twitter’s of Web 3.0 will make the same choice.
Think of your blog as a combination off all the pseudo-blogging tools that you will be using in a few years. Your Flickr feed and your Jaiku account, your Upcoming calendar and the latest Google maps mashup. Your blog will, in short, be a close approximation to who you are.
Related Companies: iGoogle, Netvibes
Choosing Not To Blog
As blogging becomes more invasive, a common societal backlash will be those who simply refuse to do it. Even if they do blog, it will be within walled gardens so that they can tightly control who has access to this “lifestream”. Generally, people are more than willing to give information out online, as long as they are given the option to make that information private. In Web 3.0 access control and role based privacy features will be the speaking points of the day.
Mobile Technology
Some new places that you will be able to push information to your blog from.
Mobile Phones
Video Game Consoles
Smart Watches
If it produces data, it is likely there will be a method to upload that data and a universal format (like RSS) to push that data into whichever receptacle you deem appropriate.
Related Projects: Lifebits

Examples of Web3.0 Features

One early example is the BlueOrganizer from AdaptiveBlue (http://www.adaptiveblue.com/). In certain situations, when you visit a Web page, this browser plug-in can understand what the page is about, automatically retrieving related information from other sites and services. If you visit a movie blog, for instance, and read about a particular film, it immediately links to sites where you can buy or rent that film. "It's what you might call a top-down approach,"

Search Engine 3.0

Rather than providing automatic information retrieval, semantic search engines seek to improve on the Google-like search model we've grown so accustomed to. The idea is to move beyond mere keyword searches to a better understanding of natural-language queries. "Right now, search engines can't tell the difference between Paris Hilton and the Hilton in Paris,"
This kind of natural-language processing has been in development for years, but it, too, has found its way onto the public Web. Semantic search might be one of the key component for Web3.0. —

We have had the first decade of the web, or Web 1.0, which was about the development of the basic platform of the internet and the ability to make huge amounts of information widely accessible, "and we're nearing the end of the second decade - Web 2.0 - which was all about the user interface" and enabling users to connect with one another.
"Now we're about to enter the third decade - Web 3.0 - which is about making the web much smarter."

So what is Web 3.0? It appears to an attempt at a more catchy name for the much-awaited and long-predicted "Semantic Web," in which meaning is attached to content accessible across the Web. Semantic Web promises to put a lot more intelligence — artificial intelligence — out there in the network of networks, and is certainly a step in the right direction.

Facebook, YouTube and the other social networks and blogs that fall within the scope of 'Web 2.0' may be beginning to penetrate the mainstream, but to those whose Cassandra-like vision lets them see the web in 2020 and beyond, they are but a pixel in a much larger picture.

Web 3.0 refers to the attempt by technologists to overhaul radically the basic platform of the internet so that it 'understands' the near infinite pieces of information that reside on it and draws connections between them.

Web 3.0 is purportedly about the application of artificial intelligence to the bazillion terabytes of data that can be brought together for analysis from across the Internet. It's predictive analytics — now in use in financial risk management tools — along with association between datasets. It has interesting potential at the enterprise level — vendors such as SAS have some interesting tools that provide some interesting capabilities.

In Web 3.0, the emphasis will revert to the back end, with a renewal of the web's key index - the essential data that is catalogued by search engines like Google. That in turn, Mr Spivack says, will make way for Web 4.0, another 'front-end decade', only with more advanced programs than the likes of Facebook.

A prime example of a Web 3.0 technology is 'natural-language search', which refers to the ability of search engines to answer full questions such as 'Which is the most visited place in India?'. In some cases, the sites that appear in the results do not reference the original search terms, reflecting the fact that the web knows, for instance, that Tajmahal is a place, and that is in India.