Have you tried PSK31?

I was unfamiliar with this mode and even passed this article by several times.  I did not realize this was a modulation for other modes and only required a sound card and a tranceiver.  A local ham gave me the run-down on this and it sounds like a lot of fun.  In response to the 'above 6m' question, yes.  I was told PSK31 was being introduced to local technicians in the area to encourage more digital & activity.  Where and what mode?  The older hams use low power HF, of course, but for the new techs - 2m FM.  An incredible amound of bandwidth, true, but in a rural area, we have plenty of 'width to spare for short-range.  I thought it was a great idea and will give it a try the next time I'm in the area.