If your organization maintains a Facebook “Fan” or “Public” page (click here for an example), Facebook recently made an important change of which administrators of these pages should be aware. By default, your page no longer shows up in your fan’s News Feed. Your fans can easily change this by scrolling to the very bottom of the page and clicking the “See Hidden Friends” link and then clicking “Public Profiles” and “Add to News Feed”.
There is speculation that this is a glitch in the new Facebook design, and if so it will be quickly remedied. If you have a Facebook Fan page, however, you may want to consider alerting your fans while the bug is being resolved.