I like Dr Barbara Berkeley's
Refuse to Regain site. Berkeley was/is a bariatric surgeon and has extensive experience of working with overweight/obese people and I think it shows in her writing.
It's a very good idea to start thinking early about your maintenance, what you want for it, and how you plan to conduct it. I've said elsewhere that I'd noticed that I wasn't the size I expected to be as I neared my original goal weight of 130lbs which prompted me to investigate why. But, having learned that I was
a morbidly obese by body fat level TOFI, I acted in line with her advice and planned that I would maintain my goal weight for 6 months or so, before deciding whether or not I could handle radically overhauling my body composition.
I've summarised the
12 Tough Rules from her book and put it in the maintenance section.