Sadly there seems to be zero information about judges on the ballot. Except one guy in my district who was added to the ballot by mistake; he doesn't want to be a judge, and isn't qualified. He was nominated accidentally because he has the same name as a prominent lawyer, who also doesn't want to be a judge.
Worst form of government except for all the others...
In Colorado, for the past 30-or-so years, there's a "State Commission on Judicial Performance" and they review the judges and it's added to the voter booklet. They put it online: http://www.coloradojudicialperformance.gov/review.cfm?year=2...
And an example of one of their reviews: http://www.coloradojudicialperformance.gov/retention.cfm?ret...
It's not perfect.. they recommend all of the judges be retained. No matter how bad they are. So you have to ignore that, and read the review which seems more informative (IMO at least).
In this light, there is very good reason to recommend that judges be retained; as having judges be worried about retention causes real problems for our judicial system.