User Experiences I come across every day. Good, bad, and ugly.
Etsy does a really good job at announcing their new features. For their improved search, a little tooltip pops up when you start typing in the search bar that gives you a chance to head over to a more detailed page on the new feature or dismiss it completely.
Now, you can search within categories, making discovery and search results more relevant.
And yes, I like cardigans.