In searching for resources, I've been very disappointed, though. I've been scouring through the print copies of Oak Leaves that I have (the earliest issue I have is #17), and I just realized that until recently, we weren't at all helping Dedicants get through their DPs. The first issue that had anything of real use in it was issue #24, which has tlachtga's discussion of Urban Druidism (for which I'm very greatful at this point).
There's obviously a reason we weren't having loads of people complete the DP. Our publications simply weren't supporting it.
On the bright side, there are lots of articles relating to the DP in upcoming issues, it seems. Here's hoping that, as time goes on, they'll get better, and encourage people to actually finish their DP's. Numbers are climbing, but not fast enough for my liking. :)