My collection was featured on Shelf Life back in 2008:
http://www.animenewsnetwork.com/shelf-life/2008-06-16 It's the most recent photos of my collection I have and I have a crap ton more now, just no shelf to put them on in order to take newer pics. I also keep a record of my collection here:
http://ngsilver.com/collection/ though it also is in major need of an update (and the addition of my other non-dvd collections.)
Then there's netflix and friends if I don't actually have a series that I need for a video, though I generally edit using only what I own. I've actually used netflix a few times to grab source from a disk that I own but is corrupted (a few of my disks don't play completely anymore) or series that I once owned but were either lost or stolen through the years and I can't find copies of anymore.