What is the Liberal Agenda Anyway??

All week long I have been getting annoying phone calls from a robot voice asking me to support Sarah Palin's PAC - (political action committee). Finally I listened to robot-man last night in its entirety and this statement was repeated: "we want to fight the liberal agenda".
As far as I know, the democrats or "liberals" don't have some sort of written policy called "the liberal agenda". I assume the conservatives want it to be some sort of scary boogeyman, compelling one to vote republican.
So in the republican fantasy camp, the Liberal Agenda would look something like this:

1- Graphic sex education to pre-schoolers.
2- 24 hour a day free gay porn on PBS
3-UN tanks rolling down the streets taking away every citizens hand guns
4- Government take over of the food supply
5- Free abortions in public restrooms
6- Castro/Chavez leadership on US socialist policies

I guess any honest idea the liberal democrats have to help Americans should just be ignored--say better education, access to health care, or repairing the aging infrastructure. Because it is obviously easier just to hate them instead.