Well I recently signed up for some PPP programs, which stands for “Pay Per Post”.
Webmasters can earn money for their opinion and increase their blog earnings.
But there are some requirements if you want to participate in one of those programs.

PayPerPost.com
1) Blogs must contain a monthly chronological archive of posts.
2) Posts may not be truncated. (I suppose that means “Read more” is not allowed, which is pretty stupid!)

PayPerPost does not accept blogs from advertising community blog sites or AdSense monetized blogs such as, Blogger Party, WritingUp, BlogCharm, Blogitive, Blog4Cash, Senserely, etc.

SocialSpark.com
1) Blog Posts must have a clearly visible time stamp.
2) Blog must have 20 posts within the last 90 days.
3) “Read more” is allowed on frontpage.

Obviously there are some more requirements.

Another great PPP program is www.sponsoredreviews.com:

SponsoredReviews.com rejection might be due to the following reasons:

1. Blog is too new and has poor stats, including little traffic and/or links.
2. Blog has too much paid content and does not meet our 2:1 ratio rule.
3. Blog was over-priced based on its stats and our suggested price.
4. Blog is written in a foreign language and does not follow guidelines on how to properly submit.