Great stuff, but typically she uses a cobbled-together list of apps to get the job done.
I work at Sococo (helped start it). Its an integrated voice/video/doc/presence/chat engine that really brings a group together - like working in the same office, almost. I recommend it (because I want us to succeed!) We also eat our own dog food - Sococo is distributed across 6 states and 3 time zones. And it works great!