Which is best off page activity for gaining more user own website?

[erikasbeautystudio]

(1)Social Bookmarking
(2)Social media profile
(3)Pinterest Sharing
(4)Tumblr Sharing
(5)Twitter Sharing
(6)Blog Comment
(7)Web 2.0
(8)Pdf Sharing
(9)Forum Posting
(10)Link Buliding