Created by the United Kashrut Authority in Israel this searchable site feature a world wide database of kosher restaurants, companies and factories. Searchable databases of mikvaot and kashrut authorities world wide are also available.
Developed and maintained by Arlene J. Mathes-Scharf, this site describes itself as "The Premier Kosher Information Source on the Internet." Its goal is to provide up to date information on kosher products and the kosher food industry. The site has sections on Passover, consumer issues, commercial issues, travel, feature articles, recipes, and kashrut alerts. You can sign up for an email list as well.
Arranged in a Yahoo style directory format, this site provides links to online resources in the areas of shopping, recipes, haggadot, vacations, study sites, selling chametz, kashering your home, kids activities, greeting cards, guides, clip art, songs, explanations, humor, and counting the omer. This is a well organized and comprehensive site for researching the holiday.
The homepage of the official trade paper for the kosher food industry, this publication has news, feature articles, the international kosher food market, and highlights of new products, as well as information about Kosherfest.
Online store that allows you to purchase kosher vitamins. This searchable site allows you to browse by category or brand and sells vitamins, herbal supplements, personal care items, herbal teas and throat drops, books, and juicers.