For my fellow Mac users (and MS haters)…or anyone who is a fan of Google Docs and document portability (let’s not debate the security of this stuff—mmmmkay) I wanted to share Zoho. There’s a writer (word), presentation (powerpoint), invoices, wikis, and sheet (excel) tool among others with some extended capabilities. Oddly enough, you can use your google login as your account there too! I’m a big fan and user for group collaboration 
There’s also a marketplace for business needs!