Finished my first Yahoo Pipe today: http://pipes.yahoo.com/pipes/pipe.info?_id=EuhWomxC3hGIGwltZMag4A
This pipe takes helps you map the ADA Dental Residency programs in a given State.
Data is obtained from: http://www.ada.org/prof/ed/programs/search_advanced_us.asp
The regular expression module can be pretty frustrating. When looking at the output in the debugger, some hanging tags are not shown. It's hard to match what you can't see...
The trick I used here is to use a regex to replace the first < character. This makes the rest of the tag invalid, and shows up in the debugger.