Visual tour: The new Twitter.com

Coming soon to a Twitter account near you: Embedded pictures and video, threaded replies and drill-downs. Look out, Facebook?

After logging into Twitter, the new home page makes its debut. The left side of the screen still contains your timeline, but with a different look. But the width of the right-hand pane is significantly larger. This is where many of the new features play out.

Click the right arrow on a person's tweet and Twitter.com reveals information about that tweet and the user.

When viewing your feed, clicking the arrow icon to the right of any tweet expands that user's timeline onto the right half of the screen. Before, you had to navigate to that user's own page, leaving your feed behind.

The inclusion of retweets in a user's timeline can be enabled or disabled on a per-user basis.

If a tweeted URL is recognized as containing an image or video, that media can be viewed on the right by clicking the media icon; clicking the left arrow then collapses this panel, changing the right pane back to its original look.

Tweets can be made from the box at the top of the timeline, or by clicking the pen icon (in the upper right) to get this pop-up window.

"@"-Replies cause a dialog button to appear to the right; click it and the conversation expands onto the right half of the window.

When a text entry field is not highlighted, press the question mark key on your keyboard and a list of shortcuts appears.