Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in anyway.
IE Browser Helper Objects:
http://www.codeproject.com/csharp/dotnetbandobjects.asp
AI RobForm, BHO and C# (Java script execution)http://dotnetjunkies.com/WebLog/debasish/archive/2006/05/20/138662.aspx
http://weblogs.asp.net/stevencohn/articles/60948.aspx
http://msdn2.microsoft.com/en-us/library/aa969320.aspx
http://codeguru.earthweb.com/Csharp/.NET/net_general/article.php/c4671/
http://www.developerfusion.co.uk/show/4644/
http://www.15seconds.com/issue/040331.htm
(Good example) http://petewarden.typepad.com/searchbrowser/2007/06/bho-examples.html
For Firefox: http://www.xulplanet.com/tutorials/xultu/
