will work by letting fans "follow" celebrities in the People Channel. Users can browse by category, newness, popularity and nods, and personalise the site to fit their interests.
Beyonce, Lily Allen, George Clooney and Britney Spears are among the 750 celebrities who feature on the site.
The information about their likes is gleaned from interviews, press reports, information from publicists and other sources.
The site has partnerships with companies including Net-a-Porter, Amazon, Boots, Avon and British Airways. There are US and UK versions of the site. It will generate revenue from e-commerce and advertising.
The Nod has been founded by Rob Hersov, who was the founder of Marquis Jet Europe and Sportal, and David Lethbridge, who co-founded Confetti. They take on the roles of chairman and CEO of The Nod respectively.
Hersov said: "In The Nod we have created a website which embraces the aspiration consumers hold for celebrity, collating a breadth of information on products and places favoured by users' favourite famous faces.
"It will provide a platform for brands to harness celebrity endorsement and recommendations.
"At the same time, fans will be able to purchase products recommended by celebrities from a trusted source."