Thifty Collage Artist Blog has some stunning artwork displayed, Im a particular fan of her art journals and her use of strong bold colours and imagery - perfection!
In addition to the gorgeous eye candy you can get a daily freebie collage image to download! Click on the link on the lefthand menu to access it:
While your there also check out this superb Art Journaling Tutorial with step by step photos and instructions:
For the background junkies you can find a couple of background tutorials too: