Yeah i am agree with your statemnet.
Link exchange is not so important.If your site has god page rank,then another party is interested in exchanging link.

Social Networking...

My site works good in Keyword Ranking but it's traffic on that keyword is not so good.
So what can i do for increasing the traffic. Backlinks for my site are very few.
Please send me your...

Backlinks are incoming links.The links to your site.
Page rank depends upon Backlinks.
check the Backlinks for a site:
Link:www.answer.com
We can increase our backlinks for your site by...

Do you tell me which factors helps in high search engine ranking .
Please send me suggestions.
Thank you .

For high search engine ranking:Do Directory submission
Blog commenting
Forums Discussion
Article marketing
Press Release
Link exchange
Classified Sites
Digg

yeah,article content should be unique.Keyword rich and check the keyword density too
If we copy the content from other site,google spam your site ,sometimes it will be banned your site. Do article...