ACE stuff
Native client repository (Access via Subversion, HTML, WebDAV ("Network Places"))
SWT
SWT/JFace wiki, outstanding resource.
Understanding Layouts in SWT
Creating Your Own Widgets using SWT
SWT newsgroups
SharpWT
SharpWT
The Sd-mono-port Archives
.NET
Managed and Unmanaged Code Integration"Everything you (n)ever wanted to know about Marshaling (and were afraid to ask!)"
.NET Reflector Assembly viewer / decompiler. Supports decompiling the .NET framework classes.
CLR Profiler
Implementing a Dispose (and finalizer) method
.NET Compact Framework
P/Invoke and marshalling on .NET CF