Twitter is testing a new design that bubbles up more of the information flowing through Twitter.

This builds on a series of changes starting last year when Twitter redesigned the homepage to make search and trending topics more visible and easily accessible to everyone. With that version, Twitter brought the search.twitter.com to the homepage and let people explore the value of Twitter without an account.

With the new design, Twitter is intentionally featuring more dynamic content on the front page, revealing a sample of who's here, what folks are tweeting about, and the big topics that they're discussing. The homepage now features a set of algorithmically-selected top tweets that automatically appear every few seconds. It also highlights a random sampling of suggested sources; hover over any of them to see a profile summary and their latest tweet. Trending topics now scroll across the page, allowing Twitter to present a large set of trends using little page real estate. Hovering over some of these trends will show a description explaining why the keyword is (or has recently been) popular.

"All of our recent changes embrace the notion that Twitter is not just for status updates anymore," Twitter's team wrote on its blog. "It's a network where information is exchanged and consumed at a rapid clip every second of the day. With so much being shared, we know that there's something of value for everyone. People who internalize the value of Twitter understand the power of this simple medium. But it hasn't been easy to make that value transparent or obvious for curious folks coming to Twitter for the first time."