Yahoo OMG it's HTML!
Yahoo recently launched Yahoo OMG!, a colorful sleek celebs gossip site.
Super-large image + title thumbnails on the home page smoothly become a preview of the item when you click on them. Seems very effective - and certainly visually pleasing! (these super-large thumbnails also happen to be of the same size and design as the super-large ad banners that are interweaved between them).
But, not being too much into celebs gossip, what really caught my eye is that it's all (almost) good old HTML. (Almost) no flash. Nice!