How get Traffic for website?

Well, it really depends on the keywords that you are targetting. Higher competitive keywords are much harder to rank for than lower competive keywords. I personally would go with lower competitive keywords if they were "buying keywords" because then I would know that people were interested in whatever it is that I was selling. Right now Google is making some changes - in fact, they always are so I personally would steer clear of "traffic exchanges" and other "black hat methods." Instead, I would focus on creating a good user experience, lower paying keywords and engage in a multiple link strategy that includes articles, Web 2.0 properties (Hubpages, Squidoo), engage in some blog commenting, profile links, etc. In essence, I would have a well rounded approach in my link building while having quality and original content on my site. That's what I would do and what I do to get high rankings.