BlueRun also participated in 140's first $2m round, which also included angel investors.

140 Proof, a US-based advertising platform for social networks Twitter and Facebook, has raised $2.5m in its series B round from a consortium led by BlueRun Ventures, a venture capital firm spun off from phone maker Nokia in 2005.

BlueRun also participated in 140’s first $2m round, which also included angel investors.