On the origins of the concept of ideology, see Ch. 1 of Hans Barth's Truth and Ideology. There are shorter accounts in Seliger's The Marxist Conception of Ideology, Lichtheim's The Concept of Ideology, pp. 12ff, and Bendix's article, 'The Age of Ideology: Persistent and Changing', pp. 296ff. For the French ideologues, see particularly Cheryl Welch's Liberty and Utility and the two books on Destutt de Tracy by Kennedy and Head.
A virtually exhaustive account of the manifold senses of the concept is given in Arne Naess et al., Democracy, Ideology and Objectivity, pp. 143ff. There is a shorter version in Robert Lane's 'The Meanings of Ideology'. See also Geuss's Idea of a Critical Theory, Ch. 1, Eagleton's Ideology, Ch. 1, and Hamilton's article 'The Elements of the Concept of Ideology'.
Attempts to distinguish ideology from the related concepts of myth and Utopia can be found in the following articles: Lee McDonald, 'Myth, Politics and Political Science'; Ben Halpern, ']Myth] and [Ideology] in Modern Usage'; and Willard Mullins, 'On the Concept of Ideology in Political Science'.
For Michael Oakeshott's strictures on ideology, see the title essay of his Rationalism in Politics. This approach is carried out in more detail in a collection by Oakeshott's disciples: David Manning, ed., The Form of Ideology. For the same scepticism about received thinking on ideology see Kenneth Minogue's recent lively polemic, Alien Powers: The Pure Theory of Ideology. For a good commentary on the Oakeshottian view of ideology, see Williams's Concepts of Ideology, Ch. 3.
Among more general works on ideology, Norman Birnbaum's 'The Sociological Study of Ideology 1940–1960', is immensely useful, though necessarily chronologically confined. Perhaps the best book is Jorge