By following the following simple steps, the problem may be resolved (at least for some).
On the main FB page, click the "Account" (on top left) and select "Help Centre" then login and then back to "News Feed".
Computer News, Technology News, IT, .NET, Databases, Google, Internet, Mobility, Linux, Microsoft, Open Source, Security, Social Media, Web Development, Business, Finance
On the main FB page, click the "Account" (on top left) and select "Help Centre" then login and then back to "News Feed".