I would love a (solar-powered) community datacenter that hosts services for the local population. Community bulletin board or forum to share event notices, lost pets, road closures etc, simple messaging and filesharing utilities for those not technical enough to host their own, maybe some simple games like chess or cards.
The problem with the current explosion of datacenters is that they don't benefit the community at all, they're just digital oil rigs that drain the community of resources while also actively poisoning the area they're in. Small wonder communities are against them.