TV ads are expensive, online ads are much cheaper to produce and if they go viral they give you a huge bang for your buck. Which probably explains why each day there’s a slew of new election ads on YouTube.

Here’s a couple of fun ones that came in overnight. This one’s from the Obama camp, and it uses the Sam Cooke classic song “Don’t know much” with slightly tweaked lyrics to make its message that John McCain doesn’t know much about, well, anything.

Meanwhile the McCain camp is attempting to woo Hillary Clinton supporters with its latest ad, Debra, which features a woman explaining why she’d switched from supporting Clinton to Obama.