I've been meaning to place a link to this site for some time now but just haven't had the time to do it.
Graham Jeffery's Sensitive Light site is a warehouse of inspiration for anyone who feels that their creative photography juices have turned into molasses.
The starting point that I would recommend is his list of galleries, which will give you a lot of inspiring photos to look at. Personal favorites include hoverflies and colored smoke.
Another nice feature of this site: images load FAST, which is more than I can say for a lot of other photo-packed sites that I've seen.