By Matt Marshall, Mercury News

Internet video -- from episodes of "South Park'' to videos of your friend singing karaoke to the latest Prince single -- has exploded in popularity.

But it's still harder than you might think to move video around. And the huge amount of video online is straining the Internet.

So a handful of Silicon Valley start-ups say they've got the Advil to alleviate the pain.

To read the full article, click on http://www.siliconvalley.com/mld/si...ey/14770401.htm