Advanced Web Interface (AWI) aka it's like TweetDeck

Visit Settings > Preferences > Appearance and enable Advanced Web Interface for a multi-column layout which may remind you of TweetDeck.

When you enable Advanced Web Interface the site will look similar to below:

The page is split into five columns. The right most column adjusts depending on the users selection. The remaining columns from left to right are Compose, Notifications, Home and Local Timeline.

On the left hand side is the Compose column, where you can write toots and search for users and hashtags. This column is topped by some icons that change the fifth column:

Getting started changes the far right column to show useful links. Selecting any of the Navigation icons will switch the view accordingly.

Here you can access settings and view your lists. It also provides easy access to your DM's and Bookmarks. An interesting feature is Explore.

This link subdivides the fifth column into popular Posts, Hashtags, News and For you.

There is also the Misc menu that shows further notable content such as Keyboard Shortcuts, Muted and Blocked users, Pinned and Favourite posts.

At the bottom of getting started, you can see find important instance links such as About, the Profile Directory and trending hashtags.

Federated will switch the right hand column to the federated view

Preferences will show the AWI preferences dialogue, which contains a wide array of options.

Logout will… log you out.