Facebook has filed its long-awaited plans for a float on the US stock market yesterday. The social networks initial public offering (IPO) of US$5 billion of shares is the largest for an internet company since Google in 2004.

UK outdoor revenues for the fourth quarter of 2011 rose 1.4% year on year to £256.4m. Total revenue for the full year was £886.3m, up 1% on 2010.

Nielsen executives began a series of industry briefings on their new Online Campaign Ratings (OCR) service last week. Online Campaign Ratings is a new measurement system that provides GRPs for online advertising campaigns, enabling consistent cross-platform reach and frequency metrics for the first time.

The Financial Times now earns more from consumers through subscription revenue than advertising, delegates at the Ignition conference were told.

Sheryl Sandberg, Facebook COO was on stage to launch day two of the Ignition conference in New York. One of the key questions posed to her was, will Facebook be bigger than Google?

New research launched today (1st December) by IPC Media has found that 50% of consumers think that advertising on premium content sites is well matched to the sites. This compares to 28% for portal sites and 30% for social networking sites.

This Saturday (3rd December) sees the airing of the first industry wide connected consumer campaign to promote digital radio.

Expect Apple TV to launch in a big way late in 2012, says Piper Jaffray analyst Gene Munster, speaking at the Ignition conference in New York today.

Opening the Business Insider Ignition conference in New York today, Adam Bain, chief revenue officer at Twitter, said the business’ goal for next year was “all about scale.”

Newsline is currently attending the Ignition: Future of Media conference in New York. The theme is “The Money is Back”.