Criticism

Object Oriented Programming Oversold!
Essay by "Topmind", a comp.objects regular; organized as rebuttal of a series of alleged OOP myths, argues that OOP is far less effective for custom business software than the industry often assumes. Long criticism on many levels and variables.
http://www.geocities.com/SiliconValley/Lab/6888/oopbad.htm

OO Example Code
Example using object-oriented polymorphism in object-oriented and non object-oriented programming languages.
http://onestepback.org/articles/poly/

Software Reality
Articles about software development, especially methodologies such as Extreme Programming and ICONIX. Also includes links and discussions.
http://www.softwarereality.com/

USENIX - Invited Talk: Objecting to Objects
Paper which argues that OOP's main benefits stem from helping developers think more clearly - and that these benefits can be gained without using OOP.
http://www.usenix.org/publications/library/proceedings/sf94/full_papers/johnson.html

Why OO Sucks
Short essay by Erlang programmer critiques object-oriented programming from the perspective of functional programming, mostly.
http://www.sics.se/~joe/bluetail/vol1/v1_oo.html

Extensible Programming for the 21st Century
Is an open, more flexible programming environment just around the corner? Article by Gregory V. Wilson. ACM Queue. <small>(December, 2004)</small>
http://acmqueue.com/modules.php?name=Content&pa=showpage&pid=247&page=1

Objects Have Failed
By Richard P. Gabriel; OOPSLA 2002 address, Seattle, WA. A paradigm fails when the narrative it embodies fails to speak truth, or when its proponents embrace it beyond reason. <small>(November 6, 2002)</small>
http://dreamsongs.com/ObjectsHaveFailedNarrative.html

Nuts to OOP!
Seasoned programmer Thomas Niemann thinks the increasingly widespread use of object-oriented programming in embedded development is largely unwarranted. Followed by a contrary view from the technical editor of Embedded Systems Programming. <small>(August, 1999)</small>
http://www.embedded.com/1999/9908/9908feat1.htm

The Risks Digest Volume 8: Issue 8
Bruce Karsh argues that structured programming "is a really bad idea that has been holding back progress for years". Not intentionally humorous. <small>(January 13, 1989)</small>
http://catless.ncl.ac.uk/Risks/8.08.html#subj1