This publication has been to make snarky cracks about the paucity of American exports. See e.g., these discussions of telephone ringtones.
Oh, I kid, I kid. Actually, America still exports a lot, including farm products, but also lots of high tech. Here's a good summary (from NSF) of what we still export, and what not: (link). And here are the tables: (link).
For more context here's a piece on import-export activity involving the United States and that poster child of low-rent, low-tech entrepreneurs, Bangladesh (link). Sure enough, exports of textile products (Tee-shirts!) from Bangladesh to the US have been booming. But look at what Bangladesh imports from the US. Textile machinery is on the list, but it's not on top.