Among other updates (easier file attachment ; better email notifications ; improved unread comments count ; addition of a "startup guide" ; ability to join a "demo group" ; etc...) +co-meeting now allows to create Public groups that anyone can join (or request to join) by following an URL.
Yes, for more than 30 user in a group you need to go to the paid version. But, even with the free version, the number of groups you can create is unlimited...
The free version won't allow public waves with hundreds of participants like in GWave, but this ability to invite by simply sharing an URL in a blog-post is already a nice step, allowing a more open collaboration, even with this limit.
#NASA's #Curiosity Mars Science Laboratory #MSL Rover, the most advanced robot ever sent to another world, will be landing on the surface of #Mars in a little more than 20 hours! The signal confirming safe landing should reach Earth at 05:31 a.m. UTC/GMT on Aug. 6.
For the official links to follow the event, including several live video feeds, check out (and scroll down) the description of the dedicated +NASA event page: http://goo.gl/DXhL2