diff --git a/WeeklyMeeting.md b/WeeklyMeeting.md
index ccd24d9..5cd8812 100644
--- a/WeeklyMeeting.md
+++ b/WeeklyMeeting.md
@@ -24,7 +24,7 @@ Go [here](http://doodle.com/ax27wvrz3qw8sske) to register what times of the day,
 
 ### the next *Nuts and Bolts* meeting
 
-URL: <https://plus.google.com/hangouts/_/76cpjbghv5h7opbu7klbu2mgss>
+URL: TBA
 
 Date: 2014-04-28 21:00Z [countdown](http://www.timeanddate.com/countdown/generic?iso=20140428T2100&p0=1440&msg=Tahoe-LAFS+weekly+meeting+countdown)
 
@@ -48,11 +48,11 @@ If you're more into science, big new features, writing papers about our work, et
 
 ### the next *Tesla Coils and Corpses* meeting
 
-URL: <https://plus.google.com/hangouts/_/calendar/YTEwYW1vbGxxMG10cmMwbGU0ZXM3N2IxODRAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ.jpu54ir91fc9higudi4imuddqc>
+URL: TBA
 
-Date: 2014-04-24 22:00Z [countdown](http://www.timeanddate.com/countdown/generic?iso=20140424T2200&p0=1440&msg=Tahoe-LAFS+weekly+meeting+countdown)
+Date: 2014-05-01 22:00Z [countdown](http://www.timeanddate.com/countdown/generic?iso=20140501T2200&p0=1440&msg=Tahoe-LAFS+weekly+meeting+countdown)
 
-Agenda: hash-based digital signatures
+Agenda: novel cryptocurrency ideas
 
 This will be a *"TESLA COILS AND CORPSES"* meeting — it is about science, big new features, writing papers about our work, etc.