Need a little more info than this. Nearly all video cameras record on to tape...but which kind does yours? If it uses miniDV or Digital8, you can digitally transfer it to computer over Firewire (IEEE1394) cable, assuming your computer has such an interface. If you don't, your next option is to have a video capture device that can take any camcorder's analog video out (usually via standard composite cables, but many accept S-Video...only useful if your camcorder outputs S-Video of course).
Once you have the video file on your computer, there are many file formats and compression standards to choose from. The stuff sent over Firewire is typically encoded in the camcorder's native DV codec, but files of this type tend to be too large to share on the Net.