Just select the file you want to email and Docstoc OneClick will upload it in the background and open up an email window complete with a link to the file. The recipient of the email will be able to either view your file online using the Docstoc viewer or download the file. You can make any file public or private.
Right now Docstoc OneClick is Windows only, but a Mac version is coming soon. There doesn't seem to be a way to configure OneClick to work with a web-based email service like Gmail or Yahoo! Mail. So when it launches an email Windows, it will load up whatever Windows thinks is your default email application, which might be Outlook, Outlook Express, or Thunderbird.
Docstoc OneClick doesn't work with all file types, just documents like Word, Excel, or PDF files. You cannot upload media files. File transfer service YouSendIt offers a similar application, but without the limitations on file types, and with a higher file size limit. But the advantage to using Docstoc is that users can view documents without downloading them.
