Forgive me if this has been posted, but new, somewhat recent (end of Jan. 2017) aerials were added to the Orange County Property Appraiser map:
OCPA Interactive MAP
Once it loads, select base map from the top left and choose "Aerial 2017 Prelims".
You'll have to be on a computer and use a browser with Silverlight installed. edit: looks like it works on mobile too but it's a pain to use.
Even though we have much more recent drone images, it's nice to be able to zoom and pan freely with the map view.