The following are links to threads where some Frequently Asked Questions have been discussed:
Advice on digging and moving Japanese maples in the landscape
Blackened tips and twigs in spring (Pseudomonas syringae)
Blackened tips and twigs is a very common situation affecting mainly some Japanese maple cultivars in the spring. There is a lot of misinformation on what causes it. In this thread the problem is discussed and some plausible explanations given.
Grafting Japanese Maples
The following threads have good information about grafting Japanese maples:
Grafting Japanese maples
How to plant a Maple
This thread contains basic information for home grafting of Japanese maples.
complete thread about grafting with many photo and very good advice !!
Kaitain4's 2011 grafting thread
2011 follow on from the previous two threads.
Planting your maple tree.
Japanese Maple Bark Related Issues
Japanese Maple Cutting Propagation
This thread contains useful information for those who desire to try out propagating Japanese Maples, mainly palmatums, by rooted cuttings.
Maples Reference Books
Maple seeds won't sprout
Information about seed stratification
Maple spring sudden wilt
Each spring many gardeners are confronted with the sudden, total wilt of mainly young A. palmatums. The subject is discussed in this thread.
Pruning: In search of a clean cut
Recommended hand pruners.
Pruning: When and how to prune Japanese maples?
Root pruning maples
This thread contains useful information on when and how to root prune maples
Verticillium wilt and related problems
These threads have information about verticillium wilt:
This is verticillium