Open Coffee: a casual cup of coffee with other tech enthousiasts.
The numbers: usually about 80 - 120 people join.
When/where: every 1st Thursday of the month, 09:30AM, Café de Balie, Leidseplein
RSVP here: http://www.meetup.com/ocamsterdam
See you then!
PS. The BovenDeBalie co-working space is adding some extra desks, so if you're looking for a great place to work, come by open coffee and ask for Marieke or have a look on the website.