Zamzar - Free Online File Conversion

Zamzar is a new Web 2.0 site that just launched offering free online file conversion for documents, videos, images and music. It supports hundreds of formats, whether you're converting PDF to DOC or AAC to MP3. You can upload up to 5 files simultaneously and up to 100MB of data. Overall a really useful tool for anyone needing to convert files in a hurry !