How to send fax via internet for free?

Send Free Fax online

Free Fax (International)
Send free Fax to any country. No Ad free fax cover page, send up to 2 faxes per day, 1 page per fax maximum. You can compose the fax online or attach a “pdf” or “doc” document.
Send free fax to India Click here

Myfax
http://www.myfax.com/free/
Send a free fax to over 30 countries. Send up to 2 faxes per day with attachments. The file must not exceed 10MB in size and contain a maximum of 10 pages. Supported files types include Microsoft Word, Excel, PowerPoint, PDF, TIF, GIF, JPEG, etc.