Yahoo answers....
What you do is, post a question about your keyword.
e.g: "I was wondering if it is posible to do something while blahbalh.."
Then Swith your IP, and run Ccleaner, and log in with another yahoo account, and answer the question with a
meaninfull answer, and in the answer, refer to your site. Your answer should be informative, but not enough to fully satisfy the
question, thus many people reading the post will click to the site.
Then Later, switch to the original account (switch IP and run Ccleaner) and mark the answer as te correct answer
Good luck