Google has integrated the browser and Internet writing (Writely) and spreadsheet program as Docs and Spreadsheets. The only advantage I can think of at present is that this change makes these services more obvious to those who have a Google account.
Writely and the Google spreadsheet app were described in previous posts. I have found these tools useful when I know that I am going to work on something for brief periods of time from various locations. Others will likely find opportunities in the collaborative capabilities these apps offer.
