AdSense is by far the most effective contextual and highest paying advertisement network for any blogger
Adsense is very strict about Adsense TOS, and you must deal with certain issues to stop violating AdSense policies. Everyone knows, getting Adsense approval will not be that simple and we have to do many things to maintain our AdSense account active.
Little out of context however since 2011, when Google launched Google Panda, they also made some main modifications in Adsense quality guidelines. Particularly, in 2011-2012 we have observed many Indian and Pakistani Adsense publishers has been banned resulting from copyright violation and on account of low-quality pages. One other main purpose for Adsense ban is invalid click
Below we mention some simple mistakes that Google Adsense publisher should avoid :
Invalid Clicks :
If Publishers will click there own ads or use any means to inflate impressions and/or clicks artificially, including manual methods. This will result in a Google Adsense account ban.
Maximum Adsense unit on a single page :
This is what Google Adsense programme policies say regarding maximum ad units
Publishers may place up to three AdSense for content units on one webpage. This includes a maximum of one 300×600 ad unit (or similarly sized ad) per page. In addition to three AdSense for content ad units, publishers may also place up to three link units and two search boxes on each page. These policies apply to both desktop and high-end mobile-optimized sites.
Sending ads on Email :
If a publisher will send AdSense adverts within the email, then it is against the program policies.
Encouraging Clicks :
Encouraging clicks through Advertisement can result in your account ban. Many publishers started using a trick like a click here, or click to see this video or picture which resulted in encouraging clicks
Altering the Adsense code :
Google Adsense doesn’t allow altering a code, like changing the colour of your ad, same as your pic. which might be a good idea to get a click but it’s against Adsense policies for which your account will get banned.
Hosting Copyright content :
Adsense doesn’t allow putting Adsense on the site that distributes copyright stuff.
More Content guidelines :
This is what Google says: Publishers may not place AdSense code on pages with content that violates any of our content guidelines. Some examples include content that is adult, violent or advocating racial intolerance.
Paid Traffic :
If you are purchasing a traffic for your Adsense enabled website, it’s not permitted according to AdSense TOS.
If you are more interested in knowing policies of Adsense, then click here on AdSense program policies