When Facebook shows users news feed stories about events their friends have RSVP’d to, it now also shows photos uploaded to the event’s wall. These photos should make event stories more eye-catching and increase earned RSVPs. Event admins should therefore add wall photos to their events to gain news feed visibility.

The Events feature hasn’t received many major changes over the years, to contrast with other Facebook products that seem to be in constant flux. Here are the minor changes that have been implemented since 2009:

• August 2009 – Facebook makes it easier to invite the same set of friends to multiple events by adding friend list and characteristic filters to the event inviter.
• May 2010 – Facebook begins showing upcoming events and allows users to manage RSVPs from the home page. It also adds an event creator to the home page to facilitate spontaneous and last minute even creation.
• July 2010 – Facebook redesigns event pages to look more similar to business Pages.
• December 2010 –  Facebook introduces a special news feed story about people becoming friends after attending the same event.
• March 2011 – Users gain the ability to check in to events, rather than just Places.

Now, if users RSVP to a Facebook event that has had photos uploaded to it’s wall, these photos will be displayed in the news feed story about the RSVP. A user’s friends can then click to view these photos in-line. Unfortunately, these stories don’t appear to pull in photos accompanying check-ins by friends. The inclusion of check-in photos in the feed story could help users find out what an event in progress looks like in real-time.

Because the RSVP stories about events with wall photos appear much bigger in the news feed, we recommend that all event promoters upload additional photos to the walls of their events to take advantage of this opportunity for more news feed exposure. This will help them attain more RSVPs, and remind those have RSVP’d to attend.

[Thanks to Eti Suruzon for the tip]