Fortune is reporting that Microsoft will offer its Office suite of software online - and for free - with the 2010 version. Looks like the online iteration will be ad-supported. Will have more on this as it develops.
Microsoft to Offer Online Office...for free
In light of the fact that Office is more than $500 to puchase out right, I have no issue slogging through some advertising in exchange for access. Like many people, I don't utilize the software enough to justify spending that much money.