These guys are based at the same co-working station as us, Station-C in Montreal, and they seem to have an idea of what they are doing.

Following the linux model. They install micro-blogging on companies intranets and then do service for them. Not a bad idea, won't be the next google, but it is a niche market that seems ripe for the taking. A lot of companies want to use twitter like services, but are not comfortable going online.