“Depending on what your company is looking for, OpenSim can be a
better option. The costs are much lower, for example, and some
grids and independent hosting providers have excellent reputations
for support. In addition, OpenSim has many features that Second
Life lacks, including mega prims, region and inventory backups,
hypergrid teleports, and mesh.“OpenSim can also be modified, since it is open source software.
Companies can integrate it with their corporate directories, for
example, or back end databases. And OpenSim can be run fully behind
a corporate or school firewall, for maximum security.“Beyond students and employees, there are other groups that
would fall into the ‘bring your own user’ category, as well.”