eMarketer projects that digital media content spending will grow from $1.3 billion in 2005 to $7.8 billion in 2010. Online video is small now but will take off as more legitimate content is made available by the major studios and there are more distribution channels and retail stores carrying it.

The breakdown:

US 2005 Revenues (million)
$1,104 Digital Music
$199 Online TV
$11 Digital Movies

Projected US 2010 Revenues (million)
$4,950 Digital Music
$2,191 Online TV
$651 Digital Movies