Let me tell you the link building strategies that work these days;
I always prefer organic links over manual. The reason is simple, manual link building won't last long. One day Google will raise red flag for sure.
However, there are some link building strategies that are acceptable for long term blogs as well:
- Guest Blogging.
- Links from Question Answering sites and Forums - Most of them are no-follow but if you get do-follow that's great.
- Links via Infographics.
- Some social bookmarks are also fine.
Aggressive link building tactics:
Leads to penalty but these can help rank your blog faster include;
- Site - Wide links.
- Directory submission.
- Buying links from Fiverr and SEO Clerks.
Do let me know if you have any more doubts.