Newsgroups:
microsoft.public.dotnet.languages.vc - http://groups-beta.google.com/group/microsoft.public.dotnet.languages.vc
microsoft.public.dotnet.languages.vc.libraries - http://groups-beta.google.com/group/microsoft.public.dotnet.languages.vc.libraries
comp.lang.c++.moderated - http://groups-beta.google.com/group/comp.lang.c++.moderated
comp.lang.c++ - http://groups-beta.google.com/group/comp.lang.c++
comp.std.c++ - http://groups-beta.google.com/group/comp.std.c++

Website:
http://msdn.microsoft.com/visualc/default.aspx

Specification sites:
http://msdn.microsoft.com/visualc/homepageheadlines/ecma/default.aspx
http://www.ecma-international.org/news/ecma-TG5-PR.htm

Blogs:
http://blogs.msdn.com/slippman
http://pluralsight.com/blogs/hsutter/
http://blogs.msdn.com/arich/
http://blogs.msdn.com/branbray/
http://blogs.msdn.com/ericflee
http://blogs.msdn.com/oldnewthing/
http://blogs.gotdotnet.com/martynl/
http://weblogs.asp.net/kennykerr/
http://weblogs.asp.net/brianjo
http://dotnetjunkies.com/weblog/primess/
http://www.gregcons.com/kateblog/default.aspx
http://blogs.msdn.com/yvesdolc/
http://weblogs.asp.net/cnagel/

Articles of interest:
http://msdn.microsoft.com/visualc/default.aspx?pull=/msdnmag/issues/05/02/purec/default.aspx
http://msdn.microsoft.com/visualc/default.aspx?pull=/library/en-us/dnvs05/html/bakerdozen.asp
http://msdn.microsoft.com/visualc/default.aspx?pull=/msdnmag/issues/04/05/visualc2005/default.aspx
http://msdn.microsoft.com/visualc/default.aspx?pull=/library/en-us/dnvs05/html/vs05cplus.asp
http://msdn.microsoft.com/visualc/default.aspx?pull=/library/en-us/dnvs05/html/stl-netprimer.asp
http://msdn.microsoft.com/visualc/default.aspx?pull=/library/en-us/dnvs05/html/transguide.asp
http://www.codeguru.com/columns/Kate/article.php/c7405/
http://www.codeproject.com/managedcpp/cppcliintro01.asp
http://www.codeproject.com/managedcpp/cppclioverriding.asp