Free content is the key to higher traffic
For many webmasters it’s impossible to imagine how they could get content for free. Of course, content is needed if you want to rank well and if you want your website to get some organic traffic. The idea is simple: Write articles and let people comment them. Of course, you may allow them leaving links within posts, within their profiles or whatever. In my experience the best comments are from those who aren’t interested in SEO, but from those who are seeking answers. People usually don’t surf the web because they want to buy something (although this type of internet users exist and they cannot be ignored), but they’re looking for information. If they cannot find the answer (even on your website), they start asking. Let them ask you as you’re probably expert (or they think so). Answering questions brings additional value to your website; Not only you describe something, you also answer real questions. The more questions and answers, the better.
You’ll get more content for free. This is the most important aspect of comments. Comments such as “Good article, thanks” should be ignored and even not published. Instead, comments of good quality with informative value can often bring new natural links from other websites. People will also bookmark your website and they will return too! What more could you want?
Since I let people ask questions on my primary website, some articles have experienced a boom in terms of traffic. Up to 100% increase. If I wanted to buy more content, I’d pay for it. Also it’s very important that by creating very informative pages you’re going to become an authority. Say that your 1000 words article can attract 100 visitors per day; Now imagine that it contains more phrases, more naturally written content… It will attract more visitors for sure!
Although, there are a few disadvantages too:
1) Sometimes you’ll be receiving spam,
2) Not everyone is using correct spelling (this could be overseen), and also 90% of people aren’t using dots, commas, and so on,
3) Sometimes people don’t read already existing comments, questions and answers, and they simply ask the same question again (ignore such comments).

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April 22, 2009
Free content is the key to higher traffic ,This blog Really more informative and great information…Thank for Post…….
April 29, 2009
thanks for these information. I will often come back