Facebook has announced it is to buy Instagram - the popular photo-sharing smartphone app.
Facebook is paying $1bn (£629m) in cash and stock for the takeover.
Instagram was only launched in October 2010 - initially just for the iPhone before being offered as an Android app last week.
Facebook's chief executive Mark Zuckerberg has pledged to continue to develop Instagram as a separate brand, allowing it to post to rival networks.
The app is free and allows users to apply 17 filters to the pictures they take - changing the colour balance to give the images a different feel - before they are uploaded.
It has proven hugely popular. The firm says that it has more than 30 million users uploading more than 5 million new pictures every day.
http://www.bbc.co.uk/news/technology-17658264