If you can tolerate the obvious Echino-bias, personally it makes me want to puke, the latest Circus of the Spineless is up over at from Archaea to Zeaxanthol. Word on the street is that all Mollusk contributions were deleted.
In a very unsurprising post from I’m A Chordata, Urochordata!, there is another post voting for the chordates. Personally, I think the Google results are faked. Try running that search with mammals and birds removed. Please! Like anybody cares about tunicates.