Do some seo with private blog network

I am looking to do some seo. Heard from my friends these links from private blog network are really good.

What do you think? He have me those sources below:

1. http://habitsofmind.org/profile/buypbnlinks/
2. https://www.keyingredient.com/members/2722092002/
3. http://www.cartoonmovement.com/p/39793
4. http://ebookee.org/user/buypbnlinks
5. http://www.chatbazaar.com/buypbnlinks
6. https://www.codeplex.com/site/users/view/buypbnlinks
7. http://forum.geonames.org/gforum/user/profile/223350.page
8. http://www.virtualdj.com/homepage/buypbnlinks/index.html
9. https://musescore.com/user/11769466
10. https://goodpitch.org/users/Judson-Sesay