Facebook is taking after Google’s (News - Alert) invite-only initiative as it sent an invite for an announcement later this week. Just one week after Google launched Google+, Facebook CEO Mark Zuckerburg is hyping up an “awesome” launch of his own.

The only thing confirmed about the announcement is that whatever it is, it was developed in Facebook’s (News - Alert) engineering site in Seattle.

Google’s response to Facebook, Google+, is currently in limited field trial, but the most popular person on the Facebook rival is the competition himself, Mark Zuckerberg (News - Alert), with 34,759 followers.

Zuckerberg’s reponse was, 'Why are people so surprised that I'd have a Google account?”

Employees of Facebook have Google+ pages and are looking to gain as much user feedback and reflect it back to Facebook.

Theories for what the announcement could entail include a video-chat feature powered by Skype (News - Alert), a mobile photo sharing app known as its “Instagram killer” or a long awaited iPad app. The leading theory is the video-chat feature, as it would be the perfect response to the Google+ launch.

When Microsoft bought Skype in May, CEO Steve Ballmer (News - Alert) mentioned "social" as one of the company's plans for it. Video-chat is one of the features that sets Google+ apart from Facebook in its launch. Facebook’s Seattle office is known to work on mobile projects, so the mobile photo sharing app would be probable.

The announcement is set for 10a.m. on Wednesday, so until then, the only thing to do is to continue speculating.

In other news, BitDefender, an award winning provider of innovative Internet security solutions, announced that nearly 25 percent of Safego Beta users have at least one Facebook friend who has spread malicious content to others. With public awareness about the threats present on social networks growing, it was found that 24.6 percent of Safego users had at least one friend who had posted an infected item, such as a suspicious application or a link to further potentially harmful content.