Some useful, some entertaining, I've been spending entirely too much time on the web lately and have found some interesting things...
Etherpad Manuals Spacetime Search Wiki Visualizer Text Analysis This one seems to have stopped working, which is unfortunate - because it's a jaw dropper:
Catgraph If anyone knows of other sites which translate text data into visual maps, please let me know.
Something else that I've found useful is to bookmark files on my own machine, usually text files that I look at regularly - you can do this by starting out with something like this:
C Drive