Apple borrows name from Google, opens Safari Extensions Gallery
Right now, there are about one hundred extensions listed and they're grouped by category. Most of the big-name extensions you'd be looking for are there -- like AdBlock, LastPass, Instapaper, and WOT. The Exposer extension is definitely worth a look -- it provides slick, Expose-style thumbnail previews of your Safari tabs.
But come on, Apple... Really? You had to name your web-based "shop" for Safari Extensions the Gallery? Maybe they're hoping for some SEO win.