I think if you looked at discusscooking alone regarding meatloaf, you'd spend the entire day reading. it's been discussed that many times.
Many of us have had questions about it and sought out favorite recipes, many of which many of us have tried and they are truly delicious.
is a web site that I just now found, but here
is another one with many responses. I've made quite a few from this second one myself so they're for your interest in meatloaves.
Oh the mighty meatloaf, it's a tricky character indeed.
Harder than many would assume to get a really good one.