The Google AdSense 250×250 – Square is one of my favorite ad units and it’s one you’ll see commonly around the Web now, both in side bars and in content with wrap around text. The 250 x 250 – Square is versatile and can be placed in many locations, added to the fact that used correctly it can convert very well. However, the 250×250 Ad Unit has fallen out of favor byMicrosoft Advertising, as well as the IAB (Interactive Advertising Bureau), in favor of the 300×250 rectangle.
The 250×250 Square ad unit is still very useful, though, and can be used both with text-only and image/rich media versions, as seen below:
- How To Get Reinstated In Google AdSense (seroundtable.com)
- Chelsea spell their name wrong in pitchside advertising hoardings! (offthepost.info)
- Google AdSense 300×250 (jonathanjeter.com)