In addition to the revamped newsday.com, two other Tribune Co. publications relaunched their Web sites, highlighting interactive and video features.

The (Baltimore) Sun introduced its redesigned site July 17 with the Chicago Tribune following a few days later.

Both sites focus on multimedia and interactive features.

“This redesign underscores our commitment to adapting to meet our users’ needs in the constantly evolving online environment,” said Alison Scholly, the Tribune’s vice president and general manager of Chicago Tribune Interactive. “The ability for more user-generated content creates a richer dialogue with our readers.”

The new platform also offers standardized ad positions and a more streamlined process for local and national advertising sales across the network of Tribune Interactive newspaper sites. Added video placement, meantime, gives advertisers a new option for online campaigns.

Baltimoresun.com, meantime, added a video player on its home page and all section fronts as well as giving readers the option to upload their own videos.

It’s the first redesign for the site since 2005.