PPC management services greatly eliminate the waste in online advertising. They constantly monitor the return on investment and adjust the advertising campaign so that the customer gets the best return for his money.
Google has thousands of employees, and the interpretation of the TOS differ. So you can have your Adsense account disabled any time. Better to search for other options.
My websites had a fairly good Adsense CTR and CPM , but recently the CTR has reduced by 50% and income has also reduced. Apparently advertisers are now getting free clicks on our websites.
PPC is disadvantageous to the publisher also. If the Adserving network like Adsense does not show targetted ads or ads at all, the visitors to the website are effectively wasted as they do not contribute to the revenue.
I have a website where I get hundreds of visitors everyday but zero clicks. Where are the clicks disappearing?
PPC contextual advertising is the most popular form of advertising today with thousands of websites carrying Google Adsense ads, but there are many disadvantages in this form of advertising for both the advertisers and the publishers. For advertisers the disadvantages are:
1. Click fraud
2. Visitors may click on a link out of curiosity, but not be interested in the product or service.
3. High cost of getting a visitor to the website , can be more than a few dollars
4. Setting up an advertising campaign can be complicated, and some times costs can soar if the keywords are not selected properly.