Effective off page methods :-

[mariyajackson]

Blog posting, guest blogging and forums also helps to create backlinks.

[ClickSSL]

As per my opinion you can choose any of off-page optimization technique to optimize your website. But only thing to remember is to follow search engine guidelines.

[nilahroy]

Effective off page methods:-
(1)Blog Commenting
(2)Forum Posting
(3)Article Submission
(4)Social Media Marketing
(5)Social Bookmarking
(6)Directory

[mamounlc.mlc]

Generally so many SEO techniques used by web master for Link building activity but below few are the killer off-page optimization techniques:
- Forum Posting in do follow site
- Blog commenting in do follow sites
- Article write and it's posting
- Social Bookmarking in high PR do follow site
- Directory submission in instant approve sites.