Twitter on Tuesday announced a complete redesign of its home page that will offer users a second viewing pane for many kinds of content. It is available to some users immediately, while others will see it implemented in the coming weeks.

Content will simply open them in the pane on the right side of the page to make discovery a much more seamless experience. Users will be able to scroll endlessly through the timeline of tweets.

Twitter struck deals with 16 media companies–including Flickr, YouTube, Vimeo, TwitPic, and others–that will allow content from those services to display in the new viewing pane.