I'm searching for something that works like Twitter but for a closed group of users. I also want a SaaS offering, nt some software (e.g. status.net) which we have to install ourselfs.
I'm aware of
- present.ly - but they seem not to support any "payed" accounts (you get what you pay for)
- yammer.com - seem to have questionable business ethics regarding data ownership etc.
I thought there would be hundreds of other similar services but so far i found nothing. Any Suggestions/Experiences?