These are some of the ads we all see daily while browsing:
*3000 back links in one month.
*700 plus one way links for just xx$ per month.
*Free backlinks exchange, join now.
Do you know what will happen when join any such service? Google will drop your website from its index and that is the end of your dreams. Spamdexing is a very serious crime and you can’t deceive Google’s algorithm that keeps changing as new methods of getting link popularity are devised.
The best way to increase link popularity is through Blogs because search engines crawl them quite frequently mainly due to the constant update of content.