Many voucher code web sites use a click-to-reveal format, which requires the web site user to click to reveal the voucher code. The action of clicking places the cookie on the website visitor's computer. In the United Kingdom, the IAB Affiliate Council under chair Matt Bailey announced regulations that stated that "Affiliates must not use a mechanism whereby users are encouraged to click to interact with content where it is unclear or confusing what the outcome will be."
Social Media Examiner is probably the world's largest online magazine that covers a huge variety of topics on social media. The resource is updated daily with latest industry research, consistent 'how-to' content and news that you need to know to improve your social media marketing. Social Media Examiner is especially great at delivering tips and practical advice that will allow you to enhance your marketing efforts and become a pro in social media.
I would like to add that for information products, a lot of the time it’s pretty easy to rank for “information product review”. I recently did a review of a popular ebook that is a month long discipline program. I went about it by doing the actual program and documenting everything. At the end of the month I wrote up a 2700 word article summing up the whole experience.