Don't sell the product directly like it is yours. Rather promote the product based on your experiences. For example, rather than selling the product direct, talk about it in terms of My experience, I've used and liked it. This product helped me. You get the idea. By attacking the product in this manner, you help to build trust with your visitors who see you as being helpful rather than someone selling something. The pressure disappears and the visitors are far more likely to make a purchase.