Facebook has announced that it has agreed to purchase social photo-sharing app Instagram for $1 billion. Facebook founder and chief executive Mark Zuckerberg expounded on the purchase via his Facebook profile today, “For years, we’ve focused on building the best experience for sharing photos with your friends and family, Now, we’ll be able to work even more closely with the Instagram team to also offer the best experiences for sharing beautiful mobile photos with people based on your interests.” The purchase aims to give Facebook a stronger hold on mobile platforms as they work to better integrate their service for the mobile user. Facebook’s announcement comes off the heels of Instagram’s launch of its first app for Android phones; until last week the app – which had already attracted over 30 million users – had only worked on iPhones. Despite its limited phone compatibility, Instagram has been a social star in the packed world of app startups. This is the first time Facebook has acquired a company or product with so many users and it plans on keeping many of the app’s popular features such as; the ability to follow people you are not friends with on Facebook and publishing photos to other social networks. Facebook is already a popular place to share photos and Instagram will help to make it the best mobile photo sharing experience. What do you think about Facebook’s recent purchase? For more information, please see NYtimes.com.