Google Ventures and IDG Ventures are joined in the series A round for the e-mail tracking system by venture firms Foundry Group and Golden Venture Partners.

Intel Capital is joined bacing the Russia-based e-commerce company by Acton Capital Partners, the former corporate venturing unit of Hubert Burda Media, development agency the European Bank for Reconstruction and Development as well as venture firms Accel Partners and Balderton Capital.

US-based software company Microsoft nears buy of enterprise social networking company Yammer for $1bn.

The electronic pen company backed by Qualcomm and Presidio Ventures, has received a 66% write-down from another one of its venture backers.

Fashion companies Conde Nast and LVMH and media, fashion and sports business IMG back the US-based fashion website's series C.

An online high school network backed by Korea-based telecommunications company SK Telecom sells to United Online.