Just a heads-up to any LastGraph users to let you know that, soon, I'll be implementing one-week graph storage expiry (but probably not for premium users). There's now 128GB of PDFs being stored on S3, and it's probably time I started not throwing money away.
What this means is, from around the middle of next week, possibly earlier, when you make a graph, the download links you get will only be valid for seven days. After that, the files on the other end will vanish into the aether, so if you want to show them off you should probably download them and host them on your own blog.
Still, I'd like to give S3 credit; when LastGraph originally launched, I had a server with 10GB of disk space and only a bit more bandwidth. These days, LastGraph is pulling 44GB of transfer a month at S3 alone, and I have 4.4GB of stored user data (and that's compressed, children), so I'd like to thank the guys at State51 and Last.fm for the resources they've donated towards it, and the Premium users for just meeting the S3 bills so far with their signups!