SEO is easy way to get targeted traffic to your website or blogs. Here is step by step SEO :

1. Keyword Research - find keyword with 50 search a day and can be monetize by anything like adsense, amazon or ClickBank.
2. Content Creation - Create minimum 300 words content with keyword on title and article body with 2% keyword density.
3. Backlinks - You can comment on high pr blog or forum. Another way is submit article to article directory manually.
4. Monitor your effort and revenue.