Interactive ad revenue figures have been steadily heading upwards over the past few years in New Zealand and in the latest round of figures, the sector hit its highest ever level, with total advertising spend in Q3, 2012 of $94 million, an increase of three percent from the last quarter and an increase of five percent year-on-year. But, as you’d expect in such a rapidly developing industry, there are still a few issues to contend with, including a fall in display advertising, the use of ad blocking software and discussions around the appropriate methodology for collecting revenue data.