Today, Twitter has rolled out several new updates on its site, including improved photos and videos management on the service’s web interface. The new media update makes it easier for users to view media files either from profile pages or in search results.

Facebook introduced the Graph Search earlier this week, which provides a new way to search for information on the social network. Many online businesses are questioning and wondering how they can use the new tool effectively. Facebook has provided an in-depth explanation about what businesses should be doing with Graph Search.

Facebook has released a new update for its Android app loaded with new features including faster viewing of photos, voice messaging, and improvised sharing of friends’ stories to Timelines, pages and groups.

Facebook is reportedly testing a service which allows users to message strangers for a fee of $100 per message.

Facebook has sent out invitations to an event that is to be held on January 15, scheduled to start at 10pm Pacific Time. There are no specific details about why the press event is going to take place, but all we know for now is the tagline that says — Come and see what we’re building.

In a blog post, LinkedIn announced that it had passed a new milestone of 200 million members on its site. The popular business-oriented social networking site was launched in 2003, and had reportedly passed the 100 million marks in 2011. LinkedIn has added more than 13 million members since its last announcement on November 1, 2012.

Facebook seems to be testing a new single-column design for its Facebook Timelines, which makes users to easily navigate through their profile page and also enable them to organize personal messages The new Timeline has only a single column for posts and status updates.

Facebook is slowly rolling out the Facebook Page Manager for Android. With the new Facebook Page Manager for Android you can create new posts, reply to comments, view page insights, and reply to private messages.

Facebook today pushed an update for its Facebook Messenger app, which now enables users to send voice messages, and are also testing VoIP calling in Canada. The new updated version for Android and iOS devices is now available for download on Google Play Store and Apple App Store respectively.

Back in October 2012, Facebook reported a new milestone of one billion users, out of which more than 600 million where mobile users. Wondering from where these one billion users came from? Here’s an infographic that will give you an idea about Facebook’s expansion.

WhatsApp claims to have a new record, with managing to process 18 Billion Messages on New Year’s even — 7 billion inbound and 11 billion outbound messages on a single day.

Even without realizing, you have perhaps allowed hundreds of apps access to your personal info. Identify these apps and protect your Facebook, Google, and other network profiles with MyPermissions Cleaner.

Privacyfix is a free Chrome and Firefox extension that automatically scans and identifies potential privacy issues in your Facebook and Google account settings and tells you how to fix them.

Facebook is testing a new service that will enable advertisers (or anyone) to send messages to Facebook users with whom they are not connect with, and guarantees that this message will be delivered right into the users’ inbox, rather than the rarely-visited folder “other.”

The news about Instagram’s change in privacy policy and terms of service that broke out earlier this week caused an outcry by users, thinking that the new policy would allow the photo-sharing giant to sell images without the individual permission of users. However, the update won’t be effective anymore as Instagram reverts to old advertising terms.