Ideological Criticism

So this website is kinda bible-ish... but don't let that discourage you guys! It has some good information about the definition of Ideology and it mentions feminism among other topics. This mostly refers to the bible, however if you ignore the religious stuff and use the text and idea of ideology it is easy to understand.
"Some of the most visible forms of ideological biblical criticism include (among others) feminist criticism and liberationist approaches, although central to every form of ideological criticism is a working definition of “ideology” itself. Frequently in our mass media culture, “ideology” is simply equated with the notion of “political agenda,” “bias,” or even “worldview.”
I mostly just got the impression that ideology has to deal with culture and how we view certain topics with themes.