Well, it's still risky, I don't how many percentage of topics about PTCs that is allowed by Adsense. Suppose I make a blog about money-making opportunity, but I don't include PTC sites. Instead, I just make another blog about PTC sites and make a link in my first blog. Will it be safer and more effective? And is there any other way to monetize a blog besides using affiliate program and joining sites like PayPerPost?