Libya has been designated as a HOT project area for a while now due to the on-going hostilities there. There is hi-resolution imagery on Bing for the Tripoli area which is already pretty well mapped, however there is also imagery for the cities of Al Khums and Zlitan which has a lot of un-mapped area in it.
The conflict has been at a stalemate for a while, however just in the last few days the rebels have begun to advance again. The BBC reports that the rebels have started pushing westward from Misrata toward Zlitan, and they are also advancing northward from Gharian toward this same area.
Whether the rebels are able to use OSM in their activities or not, we know that various aid organizations do monitor it for coordinating their efforts. It would be nice if we had the area completely mapped as best we can from the existing imagery by the time these aid organizations move into the area.
Here are the stories from the BBC referenced above, as well as the bounding box of the hi-res imagery for the area so you can see where to work. Tomorrow I will try to put together another diary post detailing specific things that I think would be useful to map, as well as techniques for spotting them in the imagery.
Libya: Rebels continue to push west from Misrata
Libyan rebels advance towards key town south of Tripoli
The Bing Hi-res Bounding Box