Google has acquired Toro, a San Francisco-based startup that creates tools to help developers market their apps on social media sites including Facebook.

Toro makes tools and helps app developers boost their number of users. It is accredited a Facebook preferred marketing developer (PMD).

Toro, formerly known as Red Hot Labs, is led by Joel Poloney and Amitt Mahajan who were the brains behind MyMiniLife, a virtual world that played an important role in the creation of Facebook game FarmVille.

In its announcement, the company said that with Google it will gain greater resources and distribution which will allow the company to fulfil its mission in ‘making the lives of app developers easier’.

Toro said: "For our existing marketing customers, we will continue to optimize your campaigns and update your dashboards, though campaign creation has been suspended for the time being.

"We recommend working with an alternative Facebook PMD for new campaigns going forward. For reporting customers, your reports will continue free of interruption."