Now when users select “Add File” from the Groups publisher, they will have an option to choose a file from Dropbox. The first time users do this, they will have to connect their Dropbox and Facebook accounts, if they have not done so already. Then, any document, photo or video file they share will show up on the group’s wall and can be viewed on a smartphone or tablet. Group members can like or comment on file posts, just as they can with other group posts. When users make edits to files they’ve shared, the group will get an update automatically.

Group members are able to see a user’s post with the link to the file but do not have access to the rest of the person’s Dropbox. Dropbox creates a unique token used only in that link, however, group members can copy the link and share the file elsewhere.

MORE: Facebook Groups get Dropbox integration for more flexible file sharing.

Facebook today officially launches several improvements to its Friend Lists feature that can be used to define privacy settings and filter the news feed, including some changes that leaked last week. As we covered in depth then, users now have automatically created, populated and updated Smart Lists of their family, co-workers, classmates, and local friends. Additionally, users can now add friends to an “Acquaintances” list whose members will appear less frequently in the news feed, and a “Close Friends” list of people who will appear more frequently in news feed and whose updates will trigger notifications.

via Facebook Officially Launches Smart Lists, and Special Friend Lists That Influence the News Feed.