I don't really know where to post this but here seems as good a place as any. I decided to collect together a 16m plot from as many sims as possible and make them available for free to the scripting community. These plots are not to be used for advertising and any prims must be as unobtrusive (preferably invisible) as possible.
There's lots of different scanners and sim analysis you could do with a network of land like this so I think this could be a really valuable thing to the right people. Also there's no reason why multiple people couldn't all use these plots. You can only have three prims per parcel but several people can put their scripts in the same prim and besides, I doubt demand is going to be /that/ high.
So far I only have 25 sims covered but I'm rapidly expanding. They're all deeded to my group Universal Network which is open for anyone to join.
I'm open to anyone donating tier or parcels to the group but I fully expect that I'll be the only one really doing so. Right now there's a little extra tier donated to the group in case anyone has spare plots they want to put to public use.
Let me know if you're interested, or just join the group and get started.