• Overview of DotNetNuke Widgets
• DotNetNuke Widgets reference
• Insights into how you can develop your own Widgets for DotNetNuke
• Wrapping it all up
  

Other useful articles

• Relocation Widget: The relocation widget is built with SEO (Search Engine Optimization) in mind. If you want search engines to know what your most relevant content is, you should put it first. This is where the relocation widget comes in handy.
• disabling skin widgets to reduce page size
• DotNetNuke 5 widgets presentation by Will Strohl
• Stylescrubber widget
• another relocation widget article
• Embed widget
• Creating a DotNetNuke skin widget manifest file
• DotNetNuke visibility widget
• Free widget to wrap IEPNGFix
• Example of a free skin that uses the rotator widget
• Widget suite (free opensource project from Will Strohl) - this download consists of over a dozen widgets including an external links widget, social bookmarks widget, technorati info widget, facebook widget and modernizer widget and can be downloaded from here, and Will created a short video that you can watch here . In addition his blog has short videos showing all the widgets in action. This team also host their own website at http://dnnwidgets.com/
  In December 2010 this project expanded their development team and released an updated version which now contains 7 widget's. As part of this release this project created alternative downloads to choose from. Two allow you to choose if you want to include the example icon set, and the other two allow you to choose if you want a better performing, compressed version of the widget scripts instead of the debug version.
• SDN article on Widgets written by Armand Datema & Will Strohl