Armstrong's WidgetWare

This site is devoted to providing you with up-to-date information on Win32, COM(+), DCOM, MTS, ActiveX, ATL, and MFC development topics.

Developer.com

The leading source for technical information (so they say).

TX Text Control

The TX Text Control is a versatile word processing component that handles MS Word, HTML and RTF documents. If you need a complete  word processor for intranet applications, a desktop publisher with free text positioning and free text flow for a hypertext app, TX Text Control is the perfect choice. TX Text Control is very compact, fast, reliable and compatible with Microsoft's Edit Control, but offers you in addition all the functions of a WYSIWYG word processor.

MFC Programmer's SourceBook

Site with lot's of free MFC/ATL source code.

Microsoft Systems Journal

Magazine provides in-depth technical information about the Microsoft products.

SysInternals

The SysInternals Web site provides you advanced utilities, technical information and source code related to Windows 9x and Windows NT/2K internals that you won't find anywhere else.

Microsoft Developer Network Online

Essential resources for developers.

The MFC Professional

Some free MFC code.

Stas Levin Home Page - MFC GUI solutions

Here you can find the free BCG Control bar library, the MFC extension framework library which allows you create Microsoft® Office, Visual Studio® and Internet Explorer®-like applications with full toolbars/menus customization, docking control bars, menu bars, Office-2000 menus and more.