I've been using Google Docs-- especially the document and spreadsheet features-- for almost a couple of years now. I'm currently sharing some of my files, but I'd rather not publish them. They're personal and top secret. Mua ha ha.
I have used Google Docs both at home and work. In fact, the friend who married my husband and me sent his rough draft of his speech to us through Google Docs so we could review it. Ah, good memories.
I did run into a problem with Google Docs, though. You can share your document with specific people, but you can upload a document to share it with the general public unless they have a Google Docs log in. This kind of made matters a bit difficult for us, but Zoho Viewer was much easier to share in that respect.