http://www.labourstart.org/cgi-bin/lnw/show.pl?url=http://www.labourstart.org/rdf/labourstart.us.js
Doesn't get much better. Ford Visteon, etc., updated their consistently. You can also choose int'l or choose by country, language, etc. - whatever radical labor news you want.
LabourStart has also done the UnionBook web 2.0 thing that I am also on. Good stuff.
-B.