TheOptimizationIdiot - 7:25 pm on Apr 19, 2013 (gmt 0)
Is offering a discount on products and services in return for a link the same as buying one and therefore is against Google's terms and conditions?
Yes, and I don't see how there can be much argument about Google's position on the question.
Any links intended to manipulate a site's ranking in Google search results may be considered part of a link scheme. This includes any behavior that manipulates links to your site, or outgoing links from your site.
Buying or selling links that pass PageRank. This includes exchanging money for links, or posts that contain links; exchanging goods or services for links; or sending someone a “free” product in exchange for them writing about it and including a link