Before going through this I suggest you to go through the Google Adsense Series on How to increase you site rankings and traffic which will eventually help you increase your CPC.
List of Sites that you should Block
Login to your adsense dashboard and just click the tab “Allow and Block ads” then put all the website URL into block URL’s category.
101soho.com
10-bestsites.com
10-top-sites.com
12-bestsites.com
12-topsites.com
1click.com
1homeshopping.info
1s.md
1step1.info
1st-free-articles.com
1st-home-business.net
1st-lingerie.net
1st-portal.net
2020ok.com
21publish.com
25-bestsites.com
25-topsites.com
50webs.com
5-top-sites.com
7-bestsites.com
7-topsites.com
8bestsites.com
8-bestsites.com
8topsites.com
8-topsites.com
8topsitespro.com
8-topwebsites.com
9topsites.com
aavalue.com
acne.com
ad2006.com
advancedwebsearch.info
agematch.com
aish.com
all-about-puppies.com
allcoolmusic.com
all-free-info.com
allinformationabout.com
allpspgames.com
alltheautomotive.com
alltheindustrials.com
amazon.co.uk
amazon.com
answerstoday.com
aprido.com
aptmicro.com
arc99.com
arcaderockstar.com
ardice.com
articlescafe.com
ask.com
assortedinternet.com
atdmt.com
audioblog.com
be-healthy.net
best3websites.com
best4sites.net
best4solutions.com
best5online.com
best7sites.com
best8sites.org
bestautosites.net
bestcomputingsites.com
bestcraftsites.net
10-bestsites.com
10-top-sites.com
12-bestsites.com
12-topsites.com
1click.com
1homeshopping.info
1s.md
1step1.info
1st-free-articles.com
1st-home-business.net
1st-lingerie.net
1st-portal.net
2020ok.com
21publish.com
25-bestsites.com
25-topsites.com
50webs.com
5-top-sites.com
7-bestsites.com
7-topsites.com
8bestsites.com
8-bestsites.com
8topsites.com
8-topsites.com
8topsitespro.com
8-topwebsites.com
9topsites.com
aavalue.com
acne.com
ad2006.com
advancedwebsearch.info
agematch.com
aish.com
all-about-puppies.com
allcoolmusic.com
all-free-info.com
allinformationabout.com
allpspgames.com
alltheautomotive.com
alltheindustrials.com
amazon.co.uk
amazon.com
answerstoday.com
aprido.com
aptmicro.com
arc99.com
arcaderockstar.com
ardice.com
articlescafe.com
ask.com
assortedinternet.com
atdmt.com
audioblog.com
be-healthy.net
best3websites.com
best4sites.net
best4solutions.com
best5online.com
best7sites.com
best8sites.org
bestautosites.net
bestcomputingsites.com
bestcraftsites.net