There are quite a few, the easiest way to find them is just put the radio on NET 105 and issue the "MHeard" command after a half hour or so.
I've connected to more than a few and run one myself. It doesn't heard to connect and drop a line to the SYSOP, I've done it more than a few times myself...
I¡¯ve googling for any HF BBS¡¯s but haven¡¯t found any so far. I did find one through its beacon but it was on 105. I checked it out but don¡¯t want to actually use it for reading bulletins etc due to it being on 105.?
Does anyone know of an HF BBS elsewhere on the band (or perhaps another band)?