Which are the trending link building techniques you will follow?

[Powerfulvasikar]

Hlo Friends,
Can anyone tell me, Which are the trending link building techniques you will follow?

[fayeseom]

Forum postings
Updating and optimization of content
Directories
Social bookmarking
Social media marketing
Press release submission
Infographic submission etc

[najishahmed]

PPT Submission
PDF Submission
Video Submission
Social Profile
Social Bookmarking are some techniques