网络上寻找一下简要介绍， 到处这样说“这是国际贸易领域的一个非常全面的英文网站”。
确实，这是个很不错的网站，已经经营很多年。而且供求商机大部分功能免费也可以实现。不过， 本身发展速度一般， 最近的版本也是前年更新， 以前， 界面，页面执行效率很低。 客人询价， 远远没有ALIBABA多！貌似现在也一般， 商家没有好好利用。
对于， 搜索优化， 这个网站的价值， 还是蛮不错的， 如果具体企业页面能够被GOOGLE收录。 很早以前，大概2006年， 我曾经注册过一个帐户， 今天2009-04-02查看时， 竟然还完整存在，而且PR值挺高，有5分。进一步检查， 该页面已经被GOOGLE收录。不象EC21， 页面地址看起来很干净， 可是在GOOGLE， 影子也找不到。
http://www.tradezone.com/trade-leads/suppliers.php?a=4&b=3 （具体企业页面， 需要登陆）
http://chinavials.en.ec21.com/company_info.jsp
offer21.com 好象也增加了免费网站功能, 不过大部分免费网站, 搜索引擎很难检索到, 可能是没有连接入口.
chinavista 是一个老牌网站了, 只不过一直发展的一般, 不知道什么原因, 很可能是"国有"企业?
http://www.manufacturers.com.tw 是台湾地区少有的几个优秀B2B网站, 以前没有免费体验, 现在, 可能竞争太激烈, 也可以免费体验了.
网站和背景官方介绍
翻译很是麻烦， 会用这个网站的， 不用我翻译， 不会用的， 我翻译了也没有用，那就省点时间， 多和美女聊天！
Tradezone.com is a global trade center tailored for suppliers, manufacturers, exporters, import export businesses and business opportunity seekers. See our business opportunity page and Mellinger World Trade Mail Order Plan, complimentary suppliers manufacturers directory, and famous international trade leads bulletin board. Tradzone.com is packed with trade sites for your import export business opportunity requirements.
The Mellinger family has been directly active in World Trade/Mail Order for nearly 90 years! Starting with Great Grandfather Louis G. Mellinger, our family has directed the flow of millions of dollars of goods to buyers through the mails and over the Internet. The Mellinger family plays a key role in making World Trade, Mail Order and Ecommerce a career for ambitious men and women all over the world!
Through Tradezone.com we offer the World Trade Community free services to help promote products and services. Bringing the buyer and seller together has been our primary focus for decades. We have been actively involved with the Internet since 1995 and will continue to do so for many years to come.
The Mellinger Co. has helped thousands of people start and run their own Import Export Mail Order business. This program provides expert guidance in the field of World Trade and provides many resources for the business entrepreneur. International Traders is our membership base of import exporters that we work directly with to provide many international trade services. One of our primary focuses with International Traders is to put buyers and sellers together to conduct the business of World Trade.
If you are visiting this site for the first time we encourage you to visit The Trade Lead Zone and our International Trade Lead Bulletin Board. These services are free for both buyers and sellers. If you are interested in our International Traders Program, and need assistance with an Import Export Mail Order Business, please visit the information provided on Tradezone.com on how to become an IT Member.
Suppliers, high search engine ranking is important to everyone actively involved in Global Trade Ecommerce. We work hard on our search engine rankings so that your products and services get the best exposure possible on our site. We will do our best to point buyers to your company.
If you have any questions about our products or services or need assistance with your experience at Tradezone.com please contact us through the links provided on this site.