Google Adsense ad not showing up on my site

Hi. 2 out of the 3 ads show up. The wide banner at the top, then the skyscraper on the side show up.

The big square in the top of the post, was showing up before, but isn't showing up now for some reason.

Please see the link below.

How to Remember Names: 7 Easy Tips and Techniques to Help You Recall a Person’s Name

Thank you!

 

Try to open your blog with different computer.

 

Thanks. I checked it on 2 other computers with different ips. It still doesn't show. Also, I think it's that particular ad size that's not showing, because it doesn't show on other posts such as this one:

Facing Competition: How to Manage and Overcome the Pressure to Perform

Is there any way to contact google? I've been looking and it's like they try to hide from you! LOL

Thanks in advance!

 

I figured it out! There was an extra code snippet hiding somewhere! So as a result the 3rd ad wasn't showing, because google read the snippet as an extra ad, if that makes sense.

 

Doesn't adsense limit you to 2 ad sections?

 

I just open your site and found 3 ads unit are showing up properly.