You can now use Zamzar to convert text documents into the MP3 audio files, making them ideal for listening on portable music players such as the iPod. The full list of supported files are: doc -  Word; docx - Word 2007; odt - OpenDocument Text; pdf ; pub - Microsoft Publisher; txt ; wpd - Wordperfect Document; wps - Microsoft Works Document — Just upload any of supported text document to Zamzar and select MP3 as the output format. Enter your email address and Zamzar will send you a link to an MP3 file with a digitized voice reading of the text you uploaded.