San Francisco-based 5th Finger plans to announce today that it has raised $7 million in venture capital from Starfish Ventures in Australia. The company, which was originally founded in Sydney, Australia, where it was acquired by ninmsn, has now been independently re-established as 5th Finger in the U.S. The mobile-marketing company will use the capital to fund its U.S.growth. 5th Finger manages cross-platform, cross-country interactive SMS and Web marketing campaigns. For instance, it worked on a project with Live Earth Concert Series, which led to more than one million people submitting lifestyle “commitment” pledges, which were then managed by 5th Finger’s platform. The company is looking at working with multiple sectors, including food/beverages, pharmaceuticals, retail, media/TV and other live events. Some of its existing clients include: MSN Mobile, Nike, Newline Cinema and Amazon (NSDQ: AMZN), and it works with ad agencies, such as Avenue A | Razorfish, Grey and Cadient.