Upon reading that ADL is also (though far, far less of an extent than SPLC is) starting to realise that the dominionists are a threat, I did some surfing on their site and a few links off ADL's site:

http://www.adl.org/PresRele/RelChStSep_90/4507_90.htm (A report on the ADL condemning having Roy Moore in regards to a Senate hearing on religious intolerance)

http://www.adl.org/PresRele/RelChStSep_90/4694_90.htm (in regards to an attempt in Florida to pass a school prayer bill)

http://www.adl.org/PresRele/RelChStSep_90/4695_90.htm (ADL's statement on the "Justice Sunday" debacle)

http://www.adl.org/PresRele/RelChStSep_90/4510_90.htm (regarding ADL's efforts to fight attempted passage of bills and amendments that would allow churches to promote specific candidates--this is one of the BIGGIES the dominionists are trying to get passed, for obvious reasons (both because dominionist churches do it so much, and because dominionist churches are starting to lose their tax exempt status over it on occasion)

http://www.adl.org/PresRele/RelChStSep_90/4519_90.htm (regarding ADL's statement on the Texas Republican Party's official platform (which is pretty much a dominionist tract in and of itself, up to and including promotion of the "Christian Nation" canard)

http://www.adl.org/vouchers/vouchers_main.asp (ADL's statement re school vouchers)

http://www.adl.org/charitable_choice/Charitable_Choice_a.asp (ADL's statement re "charitable choice" initiatives)

http://www.adl.org/Civil_Rights/boehner_amend.asp (ADL's statement on an ongoing attempt to allow Head Start facilities operated by churches to discriminate--as it is, dominionist groups by and large cannot participate in running a Head Start facility because they keep pushing the right to ban gays, Democrats, and...well, anyone who ISN'T a dominionist. Dominionists are pushing to get this changed so that they can practice "stealth evangelism" on your kids with YOUR tax dollars)

http://www.adl.org/religious_freedom/court_sep_georgia.asp (re ADL efforts on the state level to prevent passage of dominionist-friendly amendments to Georgia's state constitution that would allow sending tax money directly to dominionist groups)

I'll be making a second post, focusing specifically on the context with so-called "Messianic Judaism" (which is an increasing concern in the Jewish community).