Giant's investment by the end of December will be made through an investment in Yunfeng E-Commerce Funds, which is managed by Yunfeng Capital, a China-based venture capital firm co-founded by Alibaba chief executive Jack Ma and Shi Yuzhu, president of New York-listed Giant Interactive.

The social media monitoring service has pulled in series A funding from Credit Agricole at the same time as it acquires American competitor ReviewAnalyst.

Textbook rental company Chegg will acquire Zinch, with a view to creating a fuller and more wide ranging service.

Secondaries venture capital firm W Capital Partners led the round, which included Time Warner Investments and SAP Ventures, and took Tremor's total to $115m.

Multinational dating website Match.com has established a toehold in the Chinese market by acquiring a stake in the dating and matchmaking service.

Prior to founding Crowdtap in October 2009, Brandon Evans was chief strategy officer and managing partner of Mr Youth, where he created social marketing strategies for Pepsi, Microsoft and P&G.

Gattamneni is now managing director of Venture Pursuit. His two directors are Dimitrios Stoimenou and Gudrun Herrmann.