When: February 2011
Why: The social productivity and task management tool -- think digital to-do lists -- was one of the top apps on the Google Apps Marketplace.
How it's being integrated: Salesforce ( transformed the technology into an app called Do.com, which lets both consumers and companies track goals. )
Risk: Salesforce has been on an acquisition spree. Integrating and maintaining so many new startup teams could be troublesome.
Amount: $25 million to $35 million (estimated)
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