The OSGrid is a great way to show of different oar files or test half ready stuff. The island will change from time to time and sonmetimes it will blow up in our face and not be online att all. But it have been up for three months without any interrupts once, I am proud of that.
I am trying to put out stuff here and do some freebe stuff to.
Finding us on the OSGrid
You need a account on the OSGrid (its free) to go to the island. OSGrid homepage.
The Osgrid island is often moving around (you do not have your place on the grid) but a map search for Nilsart or 2worlds2go will do it.