I'm glad to see something coming in this space. I had been very sad to see DabbleDB go away, and Google Fusion Tables, Google Refine, and Google Docs Spreadsheets seem promising yet somewhat neglected, unfocused, and disjoint.<p>Surely, though, there must be a more descriptive term for this than a "social network"? Even though you could consider it (to some degree) to be a social network, Github doesn't describe itself as one.
Just an aside, but you specifically explain the proper spelling of your name as "BuzzData", but your logo uses a lowercase "d" while still using an uppercase "B", i.e. "Buzzdata" instead of "BuzzData". Not important, just thought I'd point out the discrepancy.