Click image to view site AdPerk is a successful start-up company with a unique business model: Users watch videos and earn credits towards magazine subscriptions. Chrein.com was called in to complete this site, and we have been retained to continue to refine it and add features. Our close relationship with AdPerk and its bright and motivated owners allows us to use all of our web capabilities: programming, video editing and Flash video encoding, design and html coding, Flash development, and marketing consulting.