My site allusrestaurants.com...how can I market it to restaurants owner to come and add their site in it ???
How is the data being populated now? Are restaurant owners adding most of the data, or are you pulling the data from a database? Do you have a marketing budget?
Just post it around the web - the more traffic will mean the more people will add their site. If you can, it seems that leaflets and such would be a good system to employ here (I don't know, this is just off the top of my head). Also, if you can buy ads on restaurant related sites, or even just get involved in the community, more people will add their site.