diff --git a/bot.py b/bot.py
index 21c2275..9479db7 100644
--- a/bot.py
+++ b/bot.py
@@ -1,15 +1,23 @@
 import teambot,tasks,rss,time,sys,subprocess,re
 
 def unhighlight_nick (nick):
-	return nick[0] + "\u200b" + nick[1:]
+	return "_{}_".format(nick)
+
+def newpost(post):
+	return dict(
+		title = post.title,
+		link = post.link,
+		published = post.published
+	)
 
 class CosmicBot(teambot.Handler):
 	def __init__(self,bot):
 		super(CosmicBot,self).__init__(bot)
 		self.prefix = "!"
 		self.tasks = tasks.TaskPool()
-		self.tasks.add_coroutine(self.check_rss,60,dict(url="https://cosmic.voyage/rss.xml",known=[],channel="#cosmic"))
+		self.tasks.add_coroutine(self.check_rss,12,dict(url="https://cosmic.voyage/rss.xml",known=[],channel="#cosmic"))
 		self.tasks.load_state(0)
+		self.known_posts = dict() # to be populated by check_rss
 		self.commands = dict()
 		self.register_command("botlist",self.on_botlist)
 		self.register_command("roster",self.on_roster)
@@ -24,6 +32,7 @@ class CosmicBot(teambot.Handler):
 		newtrans = rss.fetchNew(state["url"],memory)
 		if newtrans:
 			memory.extend(x.guid for x in newtrans)
+			self.known_posts.extend(newpost(x) for x in newtrans)
 			for trans in newtrans:
 				self.say(state["channel"],"Transmission received: {transmission.title} ({transmission.link})".format(transmission=trans))
 				time.sleep(1)
@@ -51,8 +60,8 @@ class CosmicBot(teambot.Handler):
 			sys.exit(0)
 		elif subcmd=="check":
 			self.tasks.states[0] = self.check_rss(self.tasks.states[0],self.tasks.base_state)
-	def on_roster(self,channel,nick,namecnt=""):
-		output = subprocess.check_output(["/usr/local/bin/roster",namecnt]).decode("ascii").split("\n")
+	def on_roster(self,channel,nick,*namecnt):
+		output = subprocess.check_output(["/usr/local/bin/roster",' '.join(namecnt)]).decode("ascii").split("\n")
 		output = filter(None,output)
 		for line in output:
 			line = re.sub("\s+"," ",line).split(" ",1)
@@ -63,7 +72,7 @@ class CosmicBot(teambot.Handler):
 		count = int(count)
 		if count > 5:
 			count = 5  # don't spam the channel
-		self.say(channel, "{}: Latest {} entries...".format(nick, count))
+		self.say(channel, "{}: Latest {} entries. (See cosmic.voyage for more!)".format(nick, count))
 		for logline in loglist[:count]:
 			self.say(channel, "{}: {}".format(nick, logline.split("\t")[0][1:]))