I found there are many companies offer free advertising service. The question is "Does this helpful for link building and traffic?"
There are many companies that offer backlinks services. One of them is seolinkvine.com .I have now used the company service yet but the company has a good reputation. I prefer to build my on backlinks and create my own traffic strategies. Doing so, I have more control of the backlinks and traffic I am generating to my website.
hi...these are just for their own promotion. Nothing will benefit you much. For link building you have to do hard work by your self. If you want to do link building for your website, you can get some good strategies at Perfect Blogs
Fortunately, this isn't true. There is link building and link building. Why do we talk about great SEOs, mediocre SEOs and cheap SEOs? It's not just about technical understanding, it is mostly about having access to powerful links. CHeap SEOs develop a lot of free links for you, the kind of crap that is popularly mentioned in the forums (blog posting, social bookmarking, forum posting, profiles, free directories...). Such links are slightly better than nothing. But the real deal are power links that can rank you quickly for competitive keywords. If you can evaluate the competitiveness of a keyword you will know that a term like "email marketing software" is extremely competitive. I did a demonstration the other day and moved a website from the middle of page 3 to position 7 on page 1 for that keyword in less than a week. (I have since removed the links so the result has now dropped.) Such fast rankings for competitive keywords are achieved with power links, and most SEOs simply don't have access to them and don't know how to develop them. So doing "hard work by your self" is not necessarily going to help you very much. I hope this helps!
I don't think that by paying for advertisement you will get backlinks to your site, unless it is a novelty. As far as the traffic goes. It is always good to get traffic to your site, it helps believe me.