You do not pay to get into search engines, and you don’t necessarily need to even submit your site to them, but you do need to know their ‘rules’ – especially rules lay down by Google.
Note; these rules for inclusion can and do change. These rules are official advice from Google to Webmasters, and Google is really cracking down on ‘low-quality’ techniques that influence their rankings in 2016.
Below is a list of the most important Google Webmaster Guidelines pages and with links to each one*
*If you think there are more important guidelines, let me know, you may be right. The Google Webmaster Channel is useful to subscribe to.
If you made it to here, you should read my Google Panda post – which will take your understanding of this process to a higher level.