These are all techniques are working but i think forum posting and blog commenting on high pr forums and blogs are the most powerful techniques.
I agree, all off-page activities are considered but you have to do it with quality, there is no doubt to it really.
I agree, this is very helpful tips.
The Best Off-page Activities are given below:
Build a Facebook Group
There are many methods of link building you can use all of them but do it naturally for better result I would say.
Off page techniques are increase the page rank value in search engines..
Image Sharing also an important technique in SEO.
Forum commenting, Blog commenting, Social Bookmarking and High page directory submission are the easiest and best off page techniques.
Profile Linking, Forum Posting, Blog Commenting is most important task in Off page Techniques.