Dr. Dobb Microsoft On Demand Videos

http://www.ddj.com/ddjtvmsondemand.jhtml

Microsoft Charting for .Net control

blog post about it : http://coolthingoftheday.blogspot.com/2008/10/free-winform-and-aspnet-chart-controls.html

Rich Text Box fro Winform Information

printing from RichTextEditor
http://msdn.microsoft.com/en-us/library/ms996492.aspx

FAQ from syncfusion
http://www.syncfusion.com/FAQ/windowsforms/faq_c89c.aspx#q849q

Advanced RTF editor
http://geekswithblogs.net/pvidler/archive/2003/10/15/182.aspx

RichTextBox with background highlighting in VB.NET
http://www.codeproject.com/KB/cpp/richtextboxhs.aspx?display=PrintAll&fid=4426&df=90&mpp=25&noise=3&sort=Position&view=Quick&select=1047874

RichTextBox that Displays XHTML
http://windowsclient.net/downloads/folders/applications/entry1283.aspx

Extending RichTextBox - Part II - with many comments that add interesting features to the box
http://geekswithblogs.net/pvidler/archive/2003/10/15/188.aspx

Some RichTextBox tricks by Patrick Smacchia
http://codebetter.com/blogs/patricksmacchia/archive/2008/07/07/some-richtextbox-tricks.aspx