I've been meaning to blog on Torley's tutorials for a long time, and he just released a bunch of new ones on land. Land ownership, prim counts, parcels, simulators, rental, regions, buying, selling, abandoning, safe sale, you name it, he's filmed it!
Torley's videos are included in the SL Official Blog, and also are available on YouTube. I'd recommend subscribing to either or both! Watch, and learn.