I write articles when I get some free time. Following are the list of published articles. Hope you'll find these useful.
http://www.codeproject.com/KB/aspnet/observer-pattern-asp-net.aspx
http://www.codeproject.com/KB/webforms/aspnet-pagemanager.aspx
http://www.codeproject.com/KB/cs/generic_classes.aspx
http://www.codeproject.com/Tips/121974/Gmail-Style-User-Message-Control.aspx
http://www.simple-talk.com/dotnet/asp.net/asp.net-4.0-features/
http://www.simple-talk.com/dotnet/asp.net/asp.net-configuration/