Jumping right into the next square offering from Google Adsense, we have the 200×200 – Small Square. If you’re sidebar or content area is to small to accommodate the 250×250 – Square or the 300×250 – Medium Rectangle, your next option is the 200 x 200 – Small Square. The 200 x 200 – Square is multifaceted and can be placed in many areas of your page. Additionally, with some testing as to placement and design, this ad unit can produce a respectable amount of clicks. However, just like the 250×250 Ad Unit, the 200 x 200 has been relegated to the disapproved list by Microsoft Advertising, as well as the IAB (Interactive Advertising Bureau), in favor of the 300×250 rectangle.
Exploring Standard Ad Unit Sizes: Google AdSense 120×240 Vertical Banner
The Google AdSense 120×240 – Vertical Banner is a shorter version of the 120 x 600 – Skyscraper. The AdSense version of this ad unit is only available for text ads, due to the small area. Once again, the 120 x 240 – Vertical Banner ad unit size is also used by Microsoft Advertising, while it has been delisted by the IAB (Interactive Advertising Bureau).
This small, vertical banner is ideal when you have a small area under a thin column or you have a small area available in a large header or footer. While the 120 x 240 – Vertical Banner shouldn’t be relied upon as your main income generator for a page, as it doesn’t attract a lot of attention, it can be very effective if placed correctly. If you’re trying to place a skyscraper under a menu or in a sidebar and it is just too long, the 120×240 vertical banner is a good alternative.