I’m currently cashing in on product launches. My strategy? Pay attention to what is about to be launched, join as an affiliate, set up shitloads of websites and review sites, link them together, and baaaam. Come launch day you hope for as much traffic you can get!
Also, its important to create one in-depth review that sounds plausible. Then link all the sites to that site AND directly to the product site (using a redirect service like hopurl or smt…). DONT cross-link the various sites you make. Just set up one way link between them, with all of them linking to the main review (use a blogger account or whatever for this… you can even register a domain name and setup a website that is dedicated to reviewing this product).