Now that you know about the various social proof tools at your disposal, leverage them! Promote all those awesome testimonials, user statistics, tweets, etc. using your social media channels, sprinkle them throughout your website and blog, and create dedicated pages on your website to house certain types of social proof such as case studies, reviews, and testimonials. Use them in product marketing collateral, on landing pages, and in email marketing communications. After all, social proof will only be effective if you give it visibility.