I, too, like RTTY. It's wonderfully simple and efficient. One central web resource I use fairly often is www.ac6v.com
. If you go there and click on "RTTY Operation", there are a few websites listed there. I can't remember using a particular website that I thought was great. The ARRL Operating Manual and Handbook are always good resources. I have done most of my RTTY operating on 20m (around 14.080), but have operated on 80m/15m/10m as well. I don't think I've worked RTTY on the WARC bands (yet). Even with my modest station and antennas, I've worked some very fun DX on RTTY. For some reason, I personally enjoy RTTY more than any of the other digital modes and I've worked most of them. Hope this helps...