Web 2.0, Article Links are best according to me.
Mine favorite web2.0, forum commenting and image sharing.
Blog commenting,Forum commenting and image sharing is good.
Article Submission
PDF Submission
Web 2.0
Article Submission,Blog commenting,Web 2.0
Nice,I agree with your reply.
I Call it content marketing or relationship building if you wish so.
1. Forum Posting
2. Social Bookmarking
3. Article Submission
My favorite method if Forums, Blog post.
social bookmarking.
image sharing.
image promotion.
classified ads.
microblogging