One of the ways I took to learn more about importing and exporting was to serach locally for training and learning classes. I found that the close by community college offered a summer class on the subject of International Trade. I signed up for it and out of attending the class, I got to know the instructor who had just recently formed an non-profit International Trade Association that was focused on providing trade promotion services to intersted businesses. The association was partially funded by the U.S. Department of Commerce and through its business members subscription fees along with few for-fee services.
I joined the association and started attending its monthly meetings. I had the opportunity to get in touch with many business that are either interested in international trade or have been doing it for a number of years. The association also participated in welcoming and meeting with foreign business delegates that came to the area on trade opportunities finding missions.
For where you do business, try to locate such associations especially your local World Trade Center. Most of them offer many opportunities to connect internationally via evens such as:
Similar educational and connections opportunities are also offered through your area's International Trade Association.
Other methods I used to get connected with new manufacturers/suppliers and new customers/importers included:
Of course the internet offers many free opportunities to learn about importing and exporting and opportunities to connect with international trade partners; but nothing can substitute for the actual experience of learning the business by doing it and connecting with new customers and suppliers on a personal face to face setting that builds trust and long lasting relationships.