Top membership on OpenStack mailing lists

Users' affiliations

The Openstack mailing lists are open. Everyone can subscribe. The top list of users' affiliations was created base on the frequency and a number of subscribed users [1]:

1. RackSpace
2. HP 
3. Dell          
4. Mirantis
5. Cisco
6. IBM
7. EMC
8. SUSE
9. Nebula
10. Canonical
11. VMWare
12. Red Hat
13. Dreamhost

Mailing list

There are number of OpenStack Mailing Lists you can subscript to. Across all of them there are about 7000 individual members [1]. There are about 65 messages per day[2]. On average every months seems to generate more and more posts about the Openstack technology.

How to searching the archive

The lists archive can be found below together with a nice Google trick how to search.

1. General list: https://lists.launchpad.net/openstack/
2. Dev list: http://lists.openstack.org/pipermail/openstack-dev/
3. Operator list: http://lists.openstack.org/pipermail/openstack-operators/

As an example for the general list you can search for interesting posts there using this Google trick: 

site:https://lists.launchpad.net/openstack

References

1. https://launchpad.net/~openstack
   http://www.mirantis.com/blog/a-look-at-individual-membership-in-the-openstack-foundation/
2. http://openstack.markmail.org/