From the very bottom of my heart, I hate infinite scrolling. I hate how it makes the scrollbar jump while I'm dragging it, I hate how it obscures how much of a document I've already read, or how much content there is left. I hate how it seems like such a good idea at first glance, but ultimately just annoys the shit out of everyone. I believe that every time a developer implements infinite scrolling, a kitten orphanage catches fire, everyone dies, and the world becomes a worse place.
Don't implement infinite scrolling.