sorting thru google might not be the best idea here.
the resources that i use are -
the first place i look in is the docs. there are 50 some books that you
can download off psdn.com.
the knowledge base is another great resource to look at, more for
solutions, fixes, errors etc.
additionally there webinars, white papers etc. @psdn.com
as for the forums, everybody has it's preference, but if you're looking
for answers nothing beats peg.
i think, it's worth more then the ~20% progress maint support.
but again, i think, if you're looking for answers read.
there's a short example that walks you thru building a .net interface, in
the oera white papers.
http://psdn.progress.com/library/white_papers/oera/index.ssp
i haven't used it before, but the first place i would look at is the ".net
open clients" doc.
http://www.progress.com/products/documentation/openedge10_0b_pdf/index.ssp
oera, prodatasets and appserver knowledge are also relevant.