Link Building Services. How effective are these in terms of organic SEO?

I found some link-building service as follows:

# 300 permanent, one-way text backlinks from 100 high quality high PR forums. Samples: PR9, PR9, PR9, more.

# 500 submissions to high PR general directories. Samples: PR8, PR8, more.

# 500 Articles submitted to high PR article directories

# Signature leasing for 10$ in high PR Forums. (Is it relevant how many posts the profile has? I doubt.)

Thanks for sharing your insights

 

i would say go with directories and articles and drop the forums. forum signatures give you backlinks for sure but those links hardly have any value anymore. link from forum profiles wil lnot help much if they are just newly created profiles and nothing else is done to promote those profiles

 

Link building is ALWAYS done better if you invest the time to do it yourself.

This way you make sure there is no errors, and that you can build the links at an organic pace. Just my 2cents!