VB reference

http://www.david-zbiral.cz/vb.htm
basics in czech

http://msdn.microsoft.com/en-us/library/sh9ywfdk.aspx
http://en.wikibooks.org/wiki/Programming:Visual_Basic
http://www.hostinglogin.com/help/vbscript/vbstoc.htm

ArcObjects Reference
http://edndoc.esri.com/arcobjects/9.1/
http://edndoc.esri.com/arcobjects/9.2/welcome.htm