Effective free traffic?

Thanapoom the question is simple...

EXCLUDING google, facebook and twitter, where do you get your most effective free traffic from?

This means that if you leave out google, facebook and twitter because everyone knows them and use them, which means that there is no reason to talk about them, where do you get your most effective free traffic from?

For example, is it ApSense? Is it StumbleUpon? etc...

when you get on the first page of google's search engine , people will get into your site and that is free traffic and I think they call it real quality traffic.

You are a little bit off topic...

Build a wordpress site fill it with content , (you should not copy other people's contents) keywords should not be too much competitive , then you make it rank in google's first page (by linking it to social websites like Apsense , Facebook ... etc.) , then send it to pingomatic and the like , it is not so hard to get it ranked in googles first page.