I know, I know. Bookmarklet technology has been around for a long time. But lately it seems as though there are more useful bookmarklets around. I've been using several on a regular basis, including the HTML and CSS validator bookmarklets at W3C, and the post to del.icio.us bookmarklet mentioned in my last post.
I've found some other useful ones out there, as well as collections like this and this. (And there are plenty more.)