Zoho has released another useful product Zoho Viewer which helps u to view and share the documents online without doing any registration. It lets you upload multiple documents of upto 10MB at a time and the uploaded document will be permanently available on Zoho. You can upload document of different filetypes like doc, xls, ppt, pdf, csv and much more.
Once the document is uploaded, u will get a URL which u can share/email it to ur friends or post in blogs/forums.
Check out the video here to get an overview of Zoho Viewer.