I’ve been asked about what resources are available to get started with developing with ArcObjects.
If you are using ArcGIS Desktop, I would start online and take a look at the ArcGIS Desktop Developer Guide. See http://edndoc.esri.com/arcobjects/9.1/default.asp?URL=/arcobjects/9.1/ArcGISDesktop/HelpPages/StartPage_Desktop.htm
For ArcGIS Engine
You might also consider some free online training for ESRI’s virtual campus.
Exploring the VBA Environment
Getting Started with ArcObjects in ArcGIS
There is also a book from ESRI Press titlted Getting to Know ArcObjects.
Do you have any suggestion on getting started with ArcObjects?