As brands and website owners begin to integrate social networking logins to boost the number of signups and increase interaction, Facebook continues to be the most popular social login in the second quarter, but it has stiff competition, a new report fromsocial media platform specialists Janrain reveals. The company published its latest report in its series of quarterly social login and social sharing trend reports, indicating that in the second quarter Facebook accounted for 39% of all social profile sign-ups, compared to 30% for Google....

If thereports we’re seeingatCNBCare true, and there’s really no reason to believe otherwise, thenFacebookis aiming at an S-1 filing toward the end of 2011 for an IPO in 2012. The bigger news than the IPO, however, is that Facebook could be looking at a valuation that exceeds $100 billion. It’s a huge number, but as I said, it’s not necessarily surprising news. Facebook has been trading on the second market with a valuation of around $85 billion, with some share prices pushing the $100 million price point already....

A Chinese news report todaystatesthat Facebook has struck a deal with Chinese search engine Baidu to set up a stand-alone social networking service in the country. China is an important market for Facebook as it looks to grow ever larger. As we recentlynoted: “It’s undeniable how critical the country is for Facebook to finally hit the bigone-billionmark. The country, however, has not been showing signs of easing up the Great Firewall– it still aggressively blocks off content, such as the events that occurred in Egypt recently....

Facebook appears to be encouraging users to check in on Facebook Places via Event pages. All Facebookreports on a Check In button that appears on Events pages on the day of an event, when users are geographically close enough. We’re assuming that this is only on the mobile version of the Facebook site and we can’t replicate it here. However, Facebook often tests new features on small subsections of users before rolling them out more widely....

Facebook’srumoured partnershipwith online music-streaming service Spotify will reportedly see the world’s largest social network integrate a new “Music Dashboard” for its users, but open its service to a number of other music companies,GigaOM reports. GigaOM founder Om Malik believes Facebook’s move into music will begin with Spotify but will not end with the Sweden-based company, instead it will choose to include other music services and applications, according to his sources. Mailk says that the company is working on securing more partners in time for its f8 Developer Conference, which is due to take place in August 2011....