Two items from Roland: Stay Classy Protesters (on those who fill the void left by the Bush-haters), a Paulista flier (on the darker side of right-wing populism).
Added: more from Snoop - recommended.
Also: I missed this earlier post by Roland. (Found via TNC's round-up.)
And two interesting leftist views on the tea parties: Stumbling and Mumbling, Though Cowards Flinch.
More links. From LGF: Ron Paul & John Birch; Crazy Uncle Ron and the tea parties; Mainstreaming Alex Jones' madness. Also: InfokriegWatch: Lunatic fringe still lunatic fringe.