I chose 'web feeds' since it covered both RSS/ATOM and avoided the need to define their acronym meaning.
My view stats were very low last time I checked, but I haven't done much in the way of promotion either. (I did look into keyword advertising but that was prohibitively expensive.)
I'll probably try for another round of organic promotion once I do the site overhaul.
We both opted for "web feeds" over "RSS", which makes me feel better about that choice.
Do you have any sense of whether you've been able to reach new users? It's going to take a lot of effort from us and people like us, I think.