As someone who's always looking for inspiration, it's nice when you find a site that's got a lot of it all in one place. UI Garage is just that - created by Philippe Hong and Michael Wong, UI Garage holds an abundance of inspiration for designers looking to improve their UI game.
The best thing is, it's not just a complete dump of UI, it's split up into sections so you can search specifically for the inspiration you're after. 404 pages, notifications, music players, landing pages, it's all there. You can also submit your own work.
Check out UI Garage here.