Microsoft’s "experiment in open search", so.cl, is now open to anyone.
Launched back in May amidst very little fanfare, so.cl (pronounced "social") was initially offered only to students and billed as an experiment in learning.
Redmond has recanted those restrictions, today telling world+dog they’re free to pile in and enjoy the fun, as so.cl is now "a service where people connect over shared interests."
So.cl is rather unlike other social networks inasmuch as a post starts with a search. The results of that search can then be assembled into a post that