[n] usenet News			(pbbs usenet.demo)
[m] e-Mail	 		(pbbs mail.demo)
[f] net File archives		(pbbs file.demo)
[c] real-time Communications	(pbbs chat.demo)
[a] Arcade			(pbbs arcade.demo)
[i] Information			(pbbs info.demo)
[u] Utilities			(pbbs util.demo)
[s] misc. net Services		(pbbs misc.demo)