At its f8 developer conference, under the slogan “Build, Grow, Monetise”, Facebook rolled out a slew of new policies and initiatives designed to boost its appeal amongst users, app developers and advertisers

In its drive to encourage developers to build more apps that support the social network, Facebook is attempting to position itself as a “cross-platform platform” with 1 billion+ users that sits on top of iOS, Android and other mobile operating systems

Key announcements included App Links, an open source solution enabling linking across apps, which may drive additional usage, and Facebook Audience Network, an app ad network rolling out this year, which should drive additional margin and could challenge Google AdSense

Facebook has successfully transitioned its business to mobile, with the number of mobile users now exceeding those on PC, and mobile newsfeed ads accounting for nearly all revenue growth and over half of total revenue, now on a $10 billion annual run-rate

North America and Europe continue to account for the vast majority of revenue and revenue growth, despite flat audience penetration in both regions, as increasing mobile consumption and advertiser take-up have driven sharp increases in ARPU, particularly in the US

Despite tougher comparables and declining desktop revenue going forward, the rapid ramp up in mobile ad revenue, plus initiatives such as video ads, ads on Instagram and planned mobile ad network, should deliver strong growth through 2014 and into 2015

In an audacious move to minimise the risk of mobile social disruption, Facebook is to acquire leading messaging app Whatsapp for up to $19 billion, or $42 per user, or 11% of Facebook’s current market cap

Messaging platforms are becoming the new social media, particularly for younger demographics, and while Facebook/WhatsApp will be huge in mobile, other services could still side-step into Facebook’s territory

The price for WhatsApp may be justifiable to counter the threat, but Facebook has only bought one of many, and paying a full price may encourage the others; expensively buying every competitor does not feel like a long-term strategy