these are really all possible techniques, many of us are using these , and they are getting good positions.. one thing should be clear that we should always go for smart work...

in my point of view its enough to increasing traffic and PR

Most of the times I have noticed that webmasters asks visitors to comment or to vote or to digg their articles written on their websites. Doing such activities may harm the repo of your website. Instead you should write such a content that audience will get encourage and leave their feedback and suggestions below your articles.

Hi, thank you so much.
used cars for sale

nice post but not good
Seo services india | Seo service

Thanks for such a useful information.Must be an appreciated.

This list of 40,whats the other 61??

Show me ,pls

WOOOOw what a big list, thank you very much for sharing information

Wish i could do all 101, Thanks for the list