Why is Web 3.0 significant?

Intro on short :

The third iteration of the Web, in a nutshell, aims to put more control over web content in its users' hands. With Web 3.0, you won't need an account for each social platform--with just one account, you could seamlessly move between platforms, browse for information, or even shop.

Is it significant?

The next internet revolution is in the works and aims to put more control over web content in the hands of its users. Web 3.0, which will be built on blockchain --the technology underlying bitcoin and other cryptocurrencies--aims to eliminate all big intermediaries, including centralized governing bodies or repositories.
Put simply, with Web 3.0, you won't need an account for each social platform. With just one account, you could seamlessly move between different social platforms, browse the internet for information, or even shop.
Web 1.0, or the first phase of the World Wide Web, started in the 1990's when the dotcom boom enabled easy access to information. However, the information was largely disorganized and difficult to navigate. Google and MSN, which entered with Web 2.0 in the late 1990's, brought order to chaos, sorting the information, and presenting it in an organised manner. They helped in ranking search results based on popularity. The onset of this era enabled  simpler exchange of information with others over the internet. However, this led to the gradual shifting of power into the hands of a few large corporations.
The next version of the internet--Web 3.0--is being proposed by content creators with the intention of re-assuming power. This will open up the internet to new search engines or social networks with the control over content not restricted to just a few companies.