I used to use TinyGrab all the time, it was a pretty indispensable part of my workflow, which is why, after nearly a week of it being dead, I got fed up and wrote my own:

http://dl.dropbox.com/u/651972/ScreenDuck-0.1a.zip

It's obviously very rough right now, but it actually works. Later on I'll write a website for it and put it up on screenduck.com.