The Time blog, Political Bite, analyses YouTube and political ads:
For the time being, it's probably best to keep costs down. A million YouTubers may vote for your favorite ad, but will they take the next step and vote for your favorite candidate on election day? As Howard Dean and Samuel L. Jackson can attest. Internet enthusiasm has a way of staying on the Internet. Still, as YouTube evolves, there's no question who will thrive there: Those who can rent the best talent and rig the system most skillfully. Sorry, great unwasheds, the filthy rich still rule.
Read more here.