The evolution continues at the biggest social network today.

Facebook friends will soon be able to see a real-time stream of what the others are watching and listening to in the web.

In the past, some Facebook enthusiasts posted lyrics or YouTube videos of songs they are listening to, now Facebook itself will take care of the posting in real-time, via a "ticker" stream.

The changes at Facebook do not end with music sharing. The Guardian reported that Facebook aims to be the "key entertainment destination on the web."

Facebook founder Mark Zuckerberg is also expected to make changes on the globally popular "Like" button, allowing apps developers to create their own version such as "Want," "Desire" or "Need."

Director of engineering at Facebook Andrew Bosworth told the Guardian on Friday that the changes predate the launch of Google+ but he added, Facebook team "constantly feel like we're moving too slowly."

Early unconfirmed reports hint that music will be central to Facebook's announcements. Digital music provider Spotify and the video site Vevo are expected to make announcements on apps that will allow listeners to stream songs without leaving Facebook.

Zuckerberg is expected to unveil more changes at FB in its upcoming f8 conference in San Francisco on Thursday. Film and TV streaming sites, as well as some print media, are also expected to unveil new Facebook products at the conference.

The announcements build on the introduction of the several tools for sites at last year's f8, which Facebook claims has brought in a fourfold increase in traffic from the social network to media sites.