Since the beginning of this year, Facebook has been launching one thing or the other almost every month. The social networking company has already launched Facebook Home, the Graph Search and a completely updated Timeline. And now, Facebook is going to launch something on June 20, for which it has already sent press invites out.

According to an ABC News report, the invites have been sent through traditional snail mail instead of email. The invitation is printed on a plane white card saying, "A small team has been working on a big idea. Join us for coffee and learn about a new product."

The invitation doesn't say anything about the product or the service that is going to be launched on June 20. However, we assume that it can be a new service for the users of Facebook.

Facebook has been rumored to be launching its own RSS feed that will bring news updates directly to your Facebook accounts without having to visit different news websites. So far, Facebook has not mentioned 'coffee' in its previous media invites. In fact, Facebook is emphasizing on 'coffee' so much that the invitations also come with a coffee stain.

The only thing goes well with news (RSS feed) is coffee and we assume that this is what Facebook is hinting at.

According to a report from Mashable, Facebook may launch a postcard service that the company was testing a limited amount of users. The service allows the Facebook users to send physical copies of Facebook images through post to their friends.

Facebook started testing this feature last year and now the social networking company might be fully satisfied with the way this postcard service can work out for it.

Facebook has not been successful in creating a positive wave regarding its recently launched services and products and almost all of them remained 'average' and didn't go well with the users.

The company recently launched Twitter-like hashtags very silently without holding any press event. However, Facebook is going to release something more this week as Facebook's product manager Greg Lindley at the launch of hastags said, "Hashtags are just the first step to help people more easily discover what others are saying about a specific topic and participate in public conversations. We'll continue to roll out more features in the coming weeks and months, including trending hashtags and deeper insights, that help people discover more of the world's conversations."