flickr has added almost nothing new in about 5 years. However, I use it more than ever - with autopager it's incredible. I also wrote a greasemonkey script which replaces the default size image with the large size image on page load (and removes spaceball.gif). It's way better.<p>They should implement autopager in js and leave it on by default for the entire site - I bet total photo views would go up 50% permanently. From places where flickr is slow, this makes the site way, way more usable.<p>The community is incredible, and they have huge followings all over the world - you can easily stumble into really active nonenglish groups. I wonder if they ever realize how many people use the service.<p>Regarding keys, I once wrote a client which downloaded about 60m full size images over about 2 years for a job. All on a non-commercial key. We kept roughly within the usage limits, and they never seemed to notice.<p>The change I remember from the past few years was that they changed the photostream navigation tool on the right side of a photo - now, it remembers where you came from, and that controls which one is open by default. So if you were browsing someone's favorites, the navigator for the favorites will be open (even though you already saw that thumbnail on the previous page). In the past version, the photostream of the person's page you were on was always open no matter where you came from. Now, you are always a click away from seeing even the next photo's thumbnail. This is a bad change for me, cause I always use tabs to browse flickr anyway, and so I just came from a screen containing all the favorite thumbnails. Now, you often end up on someone's photostream, with no other of their thumbnails displayed.