Many thanks to everyone who took the time to comment on this thread. Judging from the number of views, barefoot bondage is a topic that many of us have an interest in, and there is certainly a lot of material out there.
One of my favorite bondage sites is Bedroom Bondage by Lorelei. She doesn't have much in the way of tickling, but her bondage pics are great. (She does have an interesting article on the site called "Ten Thoughts on Tickling," which talks about bondage and tickling from the viewpoint of the models who are involved.) Here are some samples from her site.