ActiveX ResourcesActiveX is a technology developed by Microsoft to help different applications share information. Download.com lists over 500 ActiveX downloads and tools. ActiveX was originally named Object Linking and Embedding (OLE) as the Wikipedia entry for ActiveX explains. Below are some more ActiveX resources.
ActiveX.com: This is Download.com's collection of ActiveX products.
Active-X Test -- checks to see if your browser supports Active X.
ActiveX Unofficial Guide
Microsoft ActiveX Controls
Microsoft ActiveX Tutorials -- a collection of tutorials from Microsoft.
Microsoft Active X Controlls Gallery -- Microsoft and third-party ActiveX sample controls
The Active Group
Active X Controls: Greg Jarol compares Active X controls to Java applets and lists several examples of how they work.