Scripture Study Plus
It is an open source development effort to provide an online scripture study tool where a person can highligh, cross-reference, tag, discuss, and share, all to enhance their personal scripture study! I can't tell you the number of times that I have looked for something like this (or started it myself), and found nothing. Now, this is something!
I've already sent my name in to be added to the project so that I can start pounding away at it immediately. Honestly, I'm almost giddy right now with anticipation to get started!