This is what happened to Robert Scoble, for example.
There's seems to be an asymmetry, here. All I get out of it is convenience (or am I wrong?). You, on the other hand, get to sniff around my data. On top of all that I'm the one taking all the risk.
Doesn't seem like a very good value proposition to me.
This section in your "privacy policy" doesn't really me eager to jump on board, either: "Atomkeep.com may use personally identifiable information collected through our website to contact Users regarding products and services offered by Atomkeep.com and its trusted affiliates. We may also use information collected through our website for research regarding the effectiveness of the website and the marketing, advertising and sales efforts of Atomkeep.com, and its trusted affiliates."
Oh, ok, so you're going to get me to give you all my data and then you're going to target ads at me. Super-duper.