See the "For add-in developers" section of my web site. It has tons of
resources for extensibility (macros and add-ins share the same extensibility
model). There is a free (for registered VS 2005 users) electronic book
"Working with Visual Studio 2005" that explains specific things like
TextSelection vs EditPoint.

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Best regards,
Carlos J. Quintero
MZ-Tools: Productivity add-ins for Visual Studio
You can code, design and document much faster:
http://www.mztools.com
> Is there a good site with info on writing IDE macros? I've examined the
> sample macros and that helps a little, but I'd really like some more
> in-depth info. For example, when would you use an EditPoint over a
> TextSelection? They both seem to have very similar methods and properties.