Update: Good story here (or here) about the reasons for the power line investment by Google, written by our colleague Sam Diaz. One main reason: faster “upload” speeds. Meanwhile, reality checks here by Mike and Om.

Cute little quip here by John Paczkowski of GMSV, on the bizarre notion that Google’s investment in Current Communications, a company that installs broadband over power lines, could some day lead to a mapping of the power lines of your house.

Along with Goldman Sachs and Hearst, Google is investing about $100 million in Current.