OnJava.com: Microsoft .NET vs. J2EE: How Do They Stack Up? - Jim Farley, author of Java Distributed Computing and co-author of Java Enterprise in a Nutshell gives answers on what exactly the .NET platform is and how the .NET architecture measures up against J2EE. - http://www.oreillynet.com/pub/a/oreilly/java/news/farley_0800.html
Making Sense of Distributed Objects - An assessment of COM, CORBA, and Java/RMI, by David Chappell. - http://www.chappellassoc.com/articles/article_Sense_Dist_Objects.html
On Being Object-Oriented: COM and CORBA - A comparison of COM and CORBA, by David Chappell. - http://www.chappellassoc.com/articles/article_COM_and_CORBA.html
ActiveX Controls vs. JavaBeans - Compares ActiveX controls against JavaBeans, by David Chappell. - http://www.chappellassoc.com/articles/article_ActiveX_v_JavaBean.html
Toolkit Comparison - Compares the same program, Klotski, written in Gtk, Qt and PyQT. Descriptions, code samples, tables, statistics, humor. [Open Source] - http://phil.freehackers.org/kde/cmp-toolkits.html