I found myself there. As far as this writer can gather, not many. But, take heart, nationally, there's many, many thousands. A look at the genealogical inquiries on America OnLine and Compuserve will give you a clue. Irish-Americans are active on the Internet and it's growing by leaps and bounds.
Many companies now have an Internet presence.
There's buying and selling going on, banking, chat rooms, Civil War Roundtables, travel tips, you name it. My daughter Erin will be visiting Ireland for the first time next month. Her boyfriend, Kurt Emerson, is in the US Navy aboard the carrier John F. Kennedy. They'll be visiting Dublin in July where he's been already granted leave. Rumor has it they'll become engaged while there.