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Facebook's arsenal of services will soon get a little flashier with the $1 billion acquisition of trendy photo-sharing Instagram -- and users on social networks quickly reacted Monday to the sudden business deal.
Herds of Instagram users expressed their satisfaction, dismay and an array of other opinions through funny or compelling message on Twitter. Not surprisingly, they also posted visual responses on Instagram (see gallery).
Facebook CEO Mark Zuckerberg announced the agreement, which is the social network's biggest acquisition, in a post on his Timeline. Facebook plans to close the sale sometime during this quarter.
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