Facebook Unveils Newsfeed Changes

Facebook Inc. hoping to keep users logged on longer as it faces competition from myriad new social apps, is tweaking its news feed again.

Changes to the feed—the key channel on Facebook's service where users post and consume content—include a more minimal design, larger images and new types of sub-feeds. The revamp reflects a big push to prod users to spend more time on the site and curry favor with brands hoping to be noticed by Facebook's users.