Bev Harris of blackboxvoting.org has for several years been fighting the "proprietary code" e-voting machines that have no paper trail.
She and her organization are poised to sue under the Freedom Of Information Act for the e-voting machines in 34 states to be "subpoenaed" and held till their source codes can be examined for glitches, patches, etc., that could have inadvertently or deliberately thrown the election results in those states.
MOST STATES CERTIFY THEIR VOTES 10 - 14 DAYS AFTER THE ELECTION.
The challenges need to be mounted officially -- and maybe even ruled on -- by those deadlines.
The important links are given in the thread linked to at the top of this post.
Harris URGENTLY needs $ contributions to fund this legal fight -- and she's very good at this kind of voter advocacy. Even a dollar or two from everyone who visits the site and wants these audits to occur will help immensely, as there are lots of outraged citizens behind Harris's effort.
Please check out the information and links in that thread.