Please suggest anything other than signature campaign, facebook/twitter bounty campaign. I believe those three are not that effective to get long term results.
If your website is ok as per Google policies, you can try Google adwords for advertising and get 100 % genuine targeted traffic. OR , Nowadays, most responsive way of promotion in my country is sms advertising. This is the most responsive method to get guaranteed visitors. Because, if you receive mail, mostly you ignore it, but if you receive any sms related to make money or anything useful to you. You always react and check out the website immediately.