The best of YouTube -- From the Puppy Cam to Sarah Silverman and Jimmy Kimmel's dueling trysts, we list the best clips of the year

By Simon Vozick-Levinson
Updated December 19, 2008 at 05:00 AM EST

”I’m F—ing Matt Damon”
Sarah Silverman and the title hunk sang about their pretend affair. Nothing could top that…

”I’m F—ing Ben Affleck”
…except for this star-studded retaliatory clip from Silverman’s beau, Jimmy Kimmel.

Spaghetti Cat
This feline gourmand has to be the most memorable guest in Mike and Juliet history.

‘Dr. Horrible’s Sing Along Blog’
A great side effect of the Hollywood writers’ strike: this campy musical with Neil Patrick Harris.

Puppy Cam
If you don’t love a 24-hour live feed of six little Shiba Inus playing around, you have no soul.

Paris Hilton’s Politics
Her election-season thoughts included a stunningly non-awful energy plan. Now, that’s hot!

Miley Cyrus’ Mockery
She had to apologize for poking fun at two fellow Disney Channel starlets after this clip leaked.

”Pork and Beans”
Weezer’s music video featured cameos from more viral phenoms than you knew you remembered.