Google’s AdSense has launched a new larger, brand-friendly 300 x 600 ad-unit to meet the demands of web content producers and publishers. Last year one of the most requested ad-sizes was the 300 x 600, as publishers realized that larger screen sizes were increasingly being used to browse the web.
The 300×600 size which is also known as the half page unit, will provide a larger space for advertisers to get their products seen, and is growing in popularity.
In 2011 the 300 x 600 and its companion sizes 300 x 50 and 300 x 100 grew by double digits, and were particularly favored by News, Sports, and Entertainment publishers. The increase in the 300 x 600 unit is indicative of a trend where publishers are offering more visually impactful ad sizes that are favored by brand advertisers, over the functionality to direct response advertisers.
You can see from the graph above (click for full view) that the 300 x 600 saw a 37% increase in popularity in 2011 along with its companions the 300 x 50 and 300 x 100, and the latest edition to AdSense will more than likely increase by a lot more moving forward. That said, for those thinking about using the latest size, bear in mind that it is quite large and for certain sites may look a bit overbearing thus detracting from a pleasant user experience especially if it is placed above the fold.
Below is a comparison chart showing the various ad sizes that are currently available via Google AdSense.