As Facebook Platform grows, so have the businesses of many of the developers finding success on Facebook Platform. From hiring teams to growing userbases and raising funding, developers around the world have turned their passions into profitable business. For example, in the past 18 months, Playfish launched eight games (seven of which have reached the Top 10 list), expanded to four offices around the world, grew to 35 million monthly active users across its applications, and is profitable. Similarly, Zynga continues to release new games to accompany Texas HoldEm Poker, the number one game on Facebook, with over 14 million monthly active users. The company is also growing, having gone from 45 to over 300 people in the past year, and currently has 90 job openings.
We are committed to helping you monetize your applications, and starting today we're offering new opportunities to help you reach the most relevant audiences. We continue to focus on two areas: helping you increase traffic to your applications, and enabling you to increase revenue from users who are engaged in the application experience.
Facebook offers many ways to help you reach new and existing users, including requests, stream stories, application bookmarks and the Application Directory. In addition, many developers have found that advertising on Facebook can meaningfully boost these organic distribution channels. In the process, they have provided guidance to us on how we can enhance our ad products to help applications increase traffic in a cost effective manner.
Based on that feedback, we've released new ad targeting capabilities built specifically for our developer community. Developers can now target ads to users who have never visited their applications to tap into new growth areas in Facebook's social graph. They can also target existing users of their applications to encourage repeat visits:
Over the coming months, we will continue to look for ways to evolve our ad products in ways that are tailored to the developer community. If you are interested in providing feedback on our advertising solutions, please fill out our survey.
In addition, we are committed to helping you better monetize users who visit your applications. We are currently conducting an alpha test in which select applications can accept Facebook Credits from users. Our 250 million users can now buy Facebook Credits in 15 currencies and we believe that, as Facebook Credits become more broadly available on Platform, they will meaningfully improve developer monetization and provide a great experience for users. If you are interested in accepting Facebook Credits in your application, please let us know by responding here.
As always, we appreciate your feedback and look forward to working with you to help build profitable businesses on Platform.