Media.io Convert Audio Online. Select your file and upload it. media.io will convert it immediately.
Audio Format: MP3, WAV, Ogg, WMA, M4A, AAC
Grab Tube’s Web Converter you can convert any online or downloaded video (.flv, .mp4, .3gp, .avi) and using their service, convert it to MP3, 3GP, AVI, FLV or MPG. This is really useful to grab a friend’s youTube video and throw it on your phone to share.
Media Converter -Convert your audio and video files from your hard disk, by url/stream (http,ftp,mms,rtsp) or directly from websites like Facebook or Youtube
Vixy.Net This service allows you convert a Flash Video / FLV file (YouTube's videos,etc) to MPEG4 (AVI/MOV/MP4/MP3/3GP) file online.
ZAMZAR -Online file conversion, covering a wide range of different image, document, music, video and compression formats. Free for files up to 100MB, and premium services also available.