Some of the categories that can be found at this site are business directory, phone number, company, zip code, area code, search engine, power searches, keywords and popular sites. So basically how this site works is like this, you add mustardpages.com to your site and everytime someone visit this site they will find your own site featured. This is great because when someone makes a google search or a yahoo search if you are not on the top sites then it is most likely that no one will visit your site due to searchers only view the top 5 pages. So mustard pages can be your way of getting people to know your site. It is very simple and you can benefit from it. So perhaps you should check out this site and see what it has to offer.