Airtime had previously raised $8.3m in series A funding from investors including Google Ventures.

Evernote raises the funds and also buys Penultimate, a handwriting app, which is the fourth biggest selling application for the iPad since Apple began selling them.

This article provides an overview of some of the techniques currently being used by some corporations to bridge the financing gap between buyers and sellers.

The US-based skin treatment company backed by Novaquest, buys Triax Pharmaceuticals.

Three Blue healthcare plans partner with venture-backed healthcare technology company Lumeris to buy real time communication network Navinet, backed by GE Equities.

The US-based enterprise social network business backed by CrunchFund, a venture firm set up with AOL's backing, buys the Scottish-based maker of a real-time interaction programme for Office.

HomeAway, backed by Google in 2010, snaps up Spanish peer.

The Goldman Sachs-backed data provider snaps up another data company.

Computer networks company Genband, backed by multiple corporates including Siemens, Intel and Texas Instruments, buys its Verizon-backed network migration rival.

The search engine company raises $47,5m from gaming company Zynga's secondary offering as its prolific deal-making continues.