I added Snap Shots to the blog this morning. This is a gadget that puts up a preview when you mouse over a link without clicking on it. This can help you decide if you want to follow the link.
I'm not sure yet if I'll leave the feature in, but if you decide you don't like it, you can disable it by clicking on the options icon (the little gear-like thingy) in the upper-right corner of the preview window, and disabling for either the current site or for all sites.
Let me know what you think of Snap Shots in the comments.