i seem can't figure how to have this kind of google ad format, has anyone ever made this kind?
It looks like a text only square ad to me, you need to either make an ad that's just text, not image in your adsense account, or do it manually using the old adsense code and specify just text i.e use "google_ad_type = "text";" instead of "google_ad_type = "text_image";"
If I can't be a good example, I'll just have to be a terrible warning...
It's likely a Premium Publisher. They can modify the CSS and format of the ads to fit their websites.
Some examples: EzineArticles Submission - Submit Your Best Quality Original Articles For Massive Exposure, Ezine Publishers Get 25 Free Article Reprints and About.com: Need. Know. Accomplish.
It's a pity they don't allow these kinds of ads for non-premium customers, as they fit in a lot better. They also reduce "ad blindness". The Adsense Premium Publisher program is invite-only though, according to this: How can I get Adsense Premium Account? - AdSense Help
ahh yes. seems like we will need lots of hard work to qualify too.There is a separate class of Premium Adsense publishers who make much more money than common Adsense accounts. If your site receives more than 5 million search queries or 20 million content page views a month, you may qualify for AdSense premium service.