The Need of Webmaster Tools:
Google Webmaster Tools provides you with detailed reports about your pages visibility on Google. At first you need to simply add and verify your site and then you will see information right away.
It Improve your site’s visibility in Google search results. Most importantly it is totally free. Webmaster Tools began as a way for webmasters to submit Sitemaps.
New Design For Google Webmaster Tools:
It has been a while since the interface was updated. Now Google released a new version of their webmaster tools, which has some good features and better visualization.
I have been using webmaster tools from the very beginning and I consider myself an advanced user. so, I can able to use this updated webmaster tools without any help items. One big enhancement is that the message indicator follows you around in the top right corner of each page, which is really helpful. As well as the internal links and links to your site reports. I can also see a report showing sites that you link to. This would be really helpful in determining if your site has been hacked or and help monitor outgoing to links if you have a site with multiple contributors or authors.
There are some nice things in there, but overall, it’s pretty much the same as it was before, except for more features and better visualization